CN206828600U - The system for handling lateritic nickel ore - Google Patents
The system for handling lateritic nickel ore Download PDFInfo
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- CN206828600U CN206828600U CN201720463563.3U CN201720463563U CN206828600U CN 206828600 U CN206828600 U CN 206828600U CN 201720463563 U CN201720463563 U CN 201720463563U CN 206828600 U CN206828600 U CN 206828600U
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- cobalt
- nickel
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- ore
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 387
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 195
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 134
- 239000010941 cobalt Substances 0.000 claims abstract description 134
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical group [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 134
- ZGDWHDKHJKZZIQ-UHFFFAOYSA-N cobalt nickel Chemical compound [Co].[Ni].[Ni].[Ni] ZGDWHDKHJKZZIQ-UHFFFAOYSA-N 0.000 claims abstract description 87
- 229910000863 Ferronickel Inorganic materials 0.000 claims abstract description 64
- 239000000843 powder Substances 0.000 claims abstract description 61
- 230000003647 oxidation Effects 0.000 claims abstract description 55
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 55
- 230000009467 reduction Effects 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000008188 pellet Substances 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000005453 pelletization Methods 0.000 claims abstract description 35
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000005486 sulfidation Methods 0.000 claims abstract description 34
- 239000007787 solid Substances 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 31
- 238000002386 leaching Methods 0.000 claims abstract description 26
- 238000000605 extraction Methods 0.000 claims abstract description 25
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 20
- 239000000654 additive Substances 0.000 claims abstract description 19
- 230000000996 additive effect Effects 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
- 239000001301 oxygen Substances 0.000 claims abstract description 19
- 238000007654 immersion Methods 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims description 7
- 238000004073 vulcanization Methods 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 57
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 74
- 239000000047 product Substances 0.000 description 70
- 238000000034 method Methods 0.000 description 45
- 229910052742 iron Inorganic materials 0.000 description 38
- 230000008569 process Effects 0.000 description 34
- 238000001354 calcination Methods 0.000 description 30
- 238000000926 separation method Methods 0.000 description 25
- 238000009740 moulding (composite fabrication) Methods 0.000 description 23
- 238000011084 recovery Methods 0.000 description 22
- 238000002791 soaking Methods 0.000 description 20
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 16
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 14
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 12
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 11
- 238000005245 sintering Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 10
- INPLXZPZQSLHBR-UHFFFAOYSA-N cobalt(2+);sulfide Chemical compound [S-2].[Co+2] INPLXZPZQSLHBR-UHFFFAOYSA-N 0.000 description 10
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 239000002893 slag Substances 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 239000005864 Sulphur Substances 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 7
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 238000007885 magnetic separation Methods 0.000 description 5
- 229910052708 sodium Inorganic materials 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 241000790917 Dioxys <bee> Species 0.000 description 3
- 241000416536 Euproctis pseudoconspersa Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 229910001710 laterite Inorganic materials 0.000 description 3
- 239000011504 laterite Substances 0.000 description 3
- 229910000480 nickel oxide Inorganic materials 0.000 description 3
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 241000080590 Niso Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- KSHLPUIIJIOBOQ-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[Co++].[Ni++] Chemical compound [O--].[O--].[O--].[O--].[Co++].[Ni++] KSHLPUIIJIOBOQ-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- -1 alkali metal salt Chemical class 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- 229910001429 cobalt ion Inorganic materials 0.000 description 2
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 150000002506 iron compounds Chemical class 0.000 description 2
- MVZXTUSAYBWAAM-UHFFFAOYSA-N iron;sulfuric acid Chemical compound [Fe].OS(O)(=O)=O MVZXTUSAYBWAAM-UHFFFAOYSA-N 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 229910001453 nickel ion Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910017343 Fe2 (SO4)3 Inorganic materials 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- FQMNUIZEFUVPNU-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co] FQMNUIZEFUVPNU-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- FPBMTPLRBAEUMV-UHFFFAOYSA-N nickel sodium Chemical compound [Na][Ni] FPBMTPLRBAEUMV-UHFFFAOYSA-N 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses the system of processing lateritic nickel ore, including：Mixed-forming device, direct reduction unit, mill ore magnetic selection device, oxidation of sulfureted calciner, water immersion, equipment for separating liquid from solid and cobalt nickel separating extraction device, wherein, mixed-forming device has lateritic nickel ore entrance, reduction coal entrance, additive entrance and the outlet of mixing pelletizing；Direct reduction unit has mixing pelletizing entrance and metallized pellet outlet；Mill ore magnetic selection device has metallized pellet entrance, the outlet of cobalt-bearing ferronickel powder and tailings outlet；Oxidation of sulfureted calciner has cobalt-bearing ferronickel powder entrance, sulfur dioxide entrance, oxygen intake and sulfidation roasting product exit；Water immersion has sulfidation roasting product inlet, water inlet and leaching slurry outlet；Equipment for separating liquid from solid has leaching slurry entrance, the outlet of cobalt nickel leachate and leached mud outlet；Cobalt nickel separating extraction device has cobalt nickel leachate entrance, cobalt products export and nickel products export.Can effectively Call Provision and nickel using the system.
Description
Technical field
The utility model belongs to field of metallurgy, specifically, the system that the utility model is related to processing lateritic nickel ore.
Background technology
Nickel has good mechanical strength, ductility and chemical stability as a kind of important strategy metal.In the world
Minable nickel resources have two classes, and one kind is Sulphide Ore, and another kind of is lateritic nickel ore.Because sulphide ore extraction process is ripe,
60% nickel yield derives from sulphide ore.And the world is available for the vulcanization ore resources of exploitation few in the recent period, sulphide ore provides in addition
Source exploration cycle and construction period are longer, and development and utilization is relatively difficult, and lateritic nickel ore aboundresources, mining cost
Low, dressing and smelting process tends to be ripe, can produce a variety of intermediate products such as nickel oxide, sulphur nickel, ferronickel, and mineral resources is leaned on sea, is readily transported, because
This utilization lateritic nickel ore has important practical significance.
Pyrogenic attack lateritic nickel ore is current prevailing technology, and wherein reduction roasting-mill ore magnetic selection has become research
Focus.Using lateritic nickel ore as raw material, coal dust is reducing agent, under the high temperature conditions that the nickel in ore is complete using direct reduction equipment
Portion is reduced into metallic nickel, and iron makes nickel be enriched in ferronickel powder according to mixed carbon comtent partial reduction into metallic iron, then through magnetic separation separation.And
Ferronickel powder is studied it and also only resided within using its briquetting as pneumatic steelmaking also without large-scale commercial Application at present
Raw material or again after superfusion office manages to obtain dilval in aspect as the raw material of smelting stainless steel, value-added content of product is not
It is high.And the cobalt element in lateritic nickel ore is not utilized in whole process, waste is caused.
Therefore, existing direct-reduction roasting-mill ore magnetic selection technical finesse lateritic nickel ore need further to develop.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.Therefore, this reality
It is to propose the system for handling lateritic nickel ore with a new purpose, the cobalt in lateritic nickel ore can be carried out using the system
Effectively recovery, while can also further improve the rate of recovery and the enrichment of nickel.
According to one side of the present utility model, the utility model proposes a kind of system for handling lateritic nickel ore, this is
System includes：
Mixed-forming device, the mixed-forming device have lateritic nickel ore entrance, reduction coal entrance, additive entrance and
Pelletizing outlet is mixed, and the mixed-forming device is suitable to the lateritic nickel ore, reduction coal and additive are carried out at mixed-forming
Reason, to obtain mixing pelletizing；
Direct reduction unit, the direct reduction unit has mixing pelletizing entrance and metallized pellet outlet, described mixed
Close pelletizing entrance with the mixing pelletizing outlet to be connected, the direct reduction unit is suitable to carry out directly also the mixing pelletizing
Original place is managed, to obtain metallized pellet；
Mill ore magnetic selection device, the mill ore magnetic selection device have metallized pellet entrance, the outlet of cobalt-bearing ferronickel powder and tailings
Outlet, the metallized pellet entrance are connected with metallized pellet outlet, and the mill ore magnetic selection device is suitable to the gold
Belong to pellet and carry out mill ore magnetic selection processing, to obtain cobalt-bearing ferronickel powder and tailings；
Oxidation of sulfureted calciner, the oxidation of sulfureted calciner have cobalt-bearing ferronickel powder entrance, sulfur dioxide entrance,
Oxygen intake and sulfidation roasting product exit, the cobalt-bearing ferronickel powder entrance are connected with cobalt-bearing ferronickel powder outlet, the oxygen
Change sulfidation roasting device to be suitable to carry out oxidation of sulfureted calcination process to the cobalt-bearing ferronickel powder, to obtain sulfidation roasting product；
Water immersion, the water immersion have sulfidation roasting product inlet, water inlet and leaching slurry outlet, the sulphur
Change product of roasting entrance with the sulfidation roasting product exit to be connected, the water immersion is suitable to enter the sulfidation roasting product
Row Soaking treatment, to obtain leaching slurry；
Equipment for separating liquid from solid, the equipment for separating liquid from solid have leaching slurry entrance, the outlet of cobalt nickel leachate and leached mud
Outlet, the leaching slurry entrance are connected with leaching slurry outlet, and the equipment for separating liquid from solid is suitable to starch described leach
Liquid carries out separation of solid and liquid, to obtain cobalt nickel leachate and leached mud；
Cobalt nickel separating extraction device, the cobalt nickel separating extraction device have cobalt nickel leachate entrance, cobalt products export and
Nickel products export, the cobalt nickel leachate entrance are connected with cobalt nickel leachate outlet, and the cobalt nickel separating extraction device is fitted
In carrying out the separation of cobalt nickel and extraction process to the cobalt nickel leachate, to obtain cobalt product and nickel product.
The system of the processing lateritic nickel ore of the utility model embodiment, is filled first with direct reduction unit and mill ore magnetic selection
Put and removed part tailings after direct-reduction processing and mill ore magnetic selection processing were carried out to lateritic nickel ore so that nickel and cobalt obtain tentatively
Purifying and enrichment；Secondly oxidation of sulfureted calcination process is carried out to cobalt ferronickel powder in oxidation of sulfureted calciner, obtains sulfidation roasting
Product；Soaking treatment is carried out to sulfidation roasting product followed by water immersion and equipment for separating liquid from solid and separation of solid and liquid removes leaching
Slag tap so that nickel and cobalt are purified and are enriched with again.Finally cobalt nickel leachate is carried using cobalt nickel separating extraction device
Cobalt proposes nickel processing, finally gives cobalt product and nickel product.Thus the processing lateritic nickel ore of the utility model above-described embodiment is used
System cobalt therein can not only be recycled, effectively nickel and cobalt can also be purified and is enriched with, improve it
Purity, efficiently solves that ferronickel powder value that existing lateritic nickel ore direct-reduction-mill selects technique to obtain is low and laterite nickel
Cobalt is without the problem recycled in ore deposit.
In addition, can also have what is added as follows according to the system of the processing lateritic nickel ore of the utility model above-described embodiment
Technical characteristic：
In the utility model, the direct reduction unit is rotary hearth furnace.It is possible thereby to further improve at direct-reduction
The efficiency of reason.
In the utility model, the oxidation of sulfureted calciner is fluidized bed furnace.It is possible thereby to further improve sulfur oxide
Change the efficiency of calcination process.
In the utility model, the equipment for separating liquid from solid is filter.It is possible thereby to further improve at separation of solid and liquid
The efficiency of reason.
In the utility model, the cobalt nickel separating extraction device include be sequentially connected extraction equipment, settling apparatus with
Filter plant.It is possible thereby to further put forward the efficiency that cobalt proposes nickel processing.
Brief description of the drawings
Fig. 1 is the structural representation according to the system of the processing lateritic nickel ore of the utility model one embodiment.
Fig. 2 is the method stream using the system processing lateritic nickel ore of the processing lateritic nickel ore of the utility model one embodiment
Cheng Tu.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
According to one side of the present utility model, the utility model proposes a kind of system for handling lateritic nickel ore, such as Fig. 1
Shown, the system includes：Mixed-forming device 100, direct reduction unit 200, mill ore magnetic selection device 300, oxidation of sulfureted roasting
Device 400, water immersion 500, equipment for separating liquid from solid 600 and cobalt nickel separating extraction device 700.
Wherein, mixed-forming device 100 has lateritic nickel ore entrance 110, reduction coal entrance 120, the and of additive entrance 130
Mix pelletizing outlet 140；Direct reduction unit 200 has mixing pelletizing entrance 210 and metallized pellet outlet 220, mixes ball
Group's entrance 210 is connected with mixing pelletizing outlet 140；Mill ore magnetic selection device 300 has metallized pellet entrance 310, cobalt-bearing ferronickel
Powder outlet 320 and tailings outlet 330, metallized pellet entrance 310 are connected with metallized pellet outlet 220；Oxidation of sulfureted is calcined
Device 400 has cobalt-bearing ferronickel powder entrance 410, sulfur dioxide entrance 420, oxygen intake 430 and sulfidation roasting product exit
440, cobalt-bearing ferronickel powder entrance 410 is connected with cobalt-bearing ferronickel powder outlet 320；Water immersion 500 has sulfidation roasting product inlet
510th, water inlet 520 and leaching slurry outlet 530, sulfidation roasting product inlet 510 is connected with sulfidation roasting product exit 440；
Equipment for separating liquid from solid 600 has leaching slurry entrance 610, cobalt nickel leachate outlet 620 and leached mud outlet 630, leaching slurry
Entrance 610 is connected with leaching slurry outlet 530；Cobalt nickel separating extraction device 700 has cobalt nickel leachate entrance 710, cobalt product
Outlet 720 and nickel products export 730, cobalt nickel leachate entrance 710 are connected with cobalt nickel leachate outlet 620.
It is described in detail below with reference to the system of processing lateritic nickel ores of the Fig. 1 to the utility model above-described embodiment.
Mixed-forming device 100
According to embodiment of the present utility model, mixed-forming device 100 has lateritic nickel ore entrance 110, reduction coal entrance
120th, additive entrance 130 and mixing pelletizing outlet 140, mixed-forming device 100 is suitable to lateritic nickel ore, reduction coal and addition
Agent carries out mixed-forming processing, to obtain mixing pelletizing.
According to embodiment of the present utility model, mass fraction containing cobalt is 0.04~0.2% in lateritic nickel ore, existing laterite nickel
The ferronickel powder value that ore deposit direct-reduction-magnetic separation process obtains is low, and nickel content is low, and impurity content is high, and ferronickel powder can not be direct
Raw material as stainless steel smelting, economic value are relatively low；And cobalt does not recycle in lateritic nickel ore.Therefore, existing place
The means of reason lateritic nickel ore need further to improve.
, will be red first with mixed-forming device 100 according to the system of the processing lateritic nickel ore of the utility model embodiment
Native nickel minerals, reduction coal and additive carry out mixed-forming processing, to obtain mixing pelletizing.Specifically, for mixed-forming
The proportioning of lateritic nickel ore, reduction coal and additive is not particularly restricted, those skilled in the art can according to be actually needed into
Row selection, can be by lateritic nickel ore, reduction coal and additive according to mass ratio 100 according to specific embodiment of the utility model:
(5~25):(3~15) mixed-forming is carried out.Thus, it is possible to significantly improve the metallization for the metallized pellet that reduction treatment obtains
Rate, so as to significantly improve the grade of nickel and cobalt in product.
According to embodiment of the present utility model, the species of additive is not particularly restricted, and those skilled in the art can be with
Selected according to being actually needed, according to specific embodiment of the utility model, additive can include aoxidizing selected from alkali metal
At least one of thing, alkali metal salt, alkaline earth oxide and alkali salt.Inventor has found, by adding these alkali
Property additive, the activity of cobalt-nickel oxide in lateritic nickel ore can be effectively improved, promote the reduction of cobalt nickel.
Direct reduction unit 200
According to embodiment of the present utility model, direct reduction unit 200 has mixing pelletizing entrance 210 and metallized pellet
Outlet 220, mixing pelletizing entrance 210 are connected with mixing pelletizing outlet 140, and direct reduction unit 200 is suitable to enter mixing pelletizing
Row direct-reduction is handled, to obtain metallized pellet.Specifically, in direct reduction unit 200, the reduction in pelletizing is mixed
Coal is reduced directly to lateritic nickel ore, so as to which the nickel in lateritic nickel ore, iron compound are reduced into simple substance, obtains the ball that metallizes
Group.
According to embodiment of the present utility model, the condition of the direct-reduction processing carried out in direct reduction unit 200 is not
It is particularly limited, those skilled in the art can be selected according to being actually needed, according to specific embodiment of the utility model,
Direct-reduction processing can carry out 20~40min completions under 1250~1350 degrees Celsius.Thus, it is possible to ensure in lateritic nickel ore
Nickel Restore All are metallic state, iron is largely reduced to metallic state, at the same the ferronickel of metallic state can agglomeration to certain
Size, the rate of recovery of nickel when being advantageous to improve follow-up mill ore magnetic selection processing.
According to embodiment of the present utility model, direct reduction unit 200 can be rotary hearth furnace, it is possible thereby to further improve
It is reduced directly treatment effeciency.
Mill ore magnetic selection device 300
According to embodiment of the present utility model, mill ore magnetic selection device 300 has metallized pellet entrance 310, cobalt-bearing ferronickel
Powder outlet 320 and tailings outlet 330, metallized pellet entrance 310 are connected with metallized pellet outlet 220, mill ore magnetic selection device
300 are suitable to carry out mill ore magnetic selection processing to metallized pellet, to obtain cobalt-bearing ferronickel powder and tailings.Specifically, can pass through
Mill ore magnetic selection device 300 carries out mill ore magnetic selection processing to the metallized pellet containing nickel, iron and cobalt simple substance, removes part tailings,
So that nickel and cobalt obtain preliminary purification and enrichment.
According to specific embodiment of the utility model, obtained after mill ore magnetic selection device 300 carries out mill ore magnetic selection processing
Cobalt-bearing ferronickel powder in the mass fraction of cobalt be 0.10~0.35%, the mass fraction of nickel is 4~10%, and the mass fraction of iron is
50~70%.According to specific embodiment of the utility model, the mass fraction of cobalt is 0.04~0.2% in lateritic nickel ore.Pass through
After direct-reduction and mill ore magnetic selection processing, the mass fraction of cobalt is improved to 0.10~0.35% by 0.04~0.2%, and nickel quality is divided
Number is improved to 4~10%.It can be seen that by direct-reduction and mill ore magnetic selection processing can cobalt and nickel be effectively enriched with, show
Write the grade for improving cobalt and nickel.
Oxidation of sulfureted calciner 400
According to embodiment of the present utility model, oxidation of sulfureted calciner 400 has cobalt-bearing ferronickel powder entrance 410, dioxy
Change sulphur entrance 420, oxygen intake 430 and sulfidation roasting product exit 440, cobalt-bearing ferronickel powder entrance 410 with cobalt-bearing ferronickel powder to go out
Mouth 320 is connected, and oxidation of sulfureted calciner 400 is suitable to carry out oxidation of sulfureted calcination process to cobalt-bearing ferronickel powder, to obtain sulphur
Change product of roasting.Specifically, when oxidation of sulfureted calcination process is carried out in oxidation of sulfureted calciner 400, in cobalt-bearing ferronickel powder
Nickel and cobalt can be converted into water-soluble nickel sulfate NiSO4With cobaltous sulfate CoSO4, subsequently can be selective by nickel and cobalt by water logging
Leach into solution, obtain cobalt nickel leachate.
According to the utility model specific embodiment, oxidation of sulfureted calcination process is carried out in oxidation of sulfureted calciner 400
When, can be by the atmosphere rich in sulfur dioxide and oxygen and controlling 500~700 degrees Celsius of temperature to cobalt-bearing ferronickel powder
Carry out oxidation of sulfureted calcination process so that nickel and cobalt are converted into water-soluble nickel sulfate NiSO in cobalt-bearing ferronickel powder4And cobaltous sulfate
CoSO4, subsequently can by Soaking treatment by nickel and cobalt Selectively leaching into solution, obtain cobalt nickel leachate.And nickel containing cobalt
Iron in iron powder can be oxidized to iron oxide (non-aqueous), even if there is iron to change into water miscible ferric sulfate Fe2(SO4)3, also can
Decomposition and inversion is Fe under the conditions of 500~700 DEG C of temperature2O3, so as to enter in cobalt nickel leachate.From there through upper
Oxidation of sulfureted calcination process is carried out under the conditions of stating can effectively realize the separation of iron and cobalt nickel, and then significantly improve the product of cobalt nickel
Position.
According to specific embodiment of the utility model, oxidation of sulfureted calcination process is in the gas rich in sulfur dioxide and oxygen
In atmosphere, carry out what 20~90min was completed at a temperature of 500~700 DEG C, wherein, in the atmosphere rich in sulfur dioxide and oxygen
The volumetric concentration of sulfur dioxide is 3~15%, and the volumetric concentration of oxygen is 3~15%.Inventor is had found, dioxy is rich in above-mentioned
Under the atmospheric condition for changing sulphur and oxygen, when sintering temperature is too high, i.e., sintering temperature is more than 700 DEG C, nickel sulfate can be decomposed into
Nickel oxide, it is impossible to be flooded out；And when sintering temperature is less than 500 DEG C, one side oxidation of sulfureted calcination is less efficient, separately
Iron is calcined issuable water miscible ferric sulfate Fe by oxidation of sulfureted in one side cobalt-bearing ferronickel powder2(SO4)3, due to sulfuric acid
Iron Fe2(SO4)3It can not be decomposed under conditions of less than 500 DEG C and generate water-insoluble iron oxide Fe2O3, in follow-up Soaking treatment
When can and nickel sulfate NiSO4Together enter in cobalt nickel leachate, efficiently separating for cobalt nickel and iron can not be realized.Thus this practicality is new
Can for 500~700 DEG C by the atmosphere rich in sulfur dioxide and oxygen, controlling the temperature of oxidation of sulfureted calcination process in type
To realize efficiently separating for follow-up cobalt nickel and iron, and oxidation of sulfureted calcination process efficiency is effectively improved, improve nickel and the cobalt rate of recovery.
According to specific embodiment of the utility model, oxidation of sulfureted calciner 400 can be fluidized bed furnace, it is possible thereby to enter
One step improves the efficiency of oxidation of sulfureted calcination process.
Water immersion 500
According to embodiment of the present utility model, water immersion 500 has sulfidation roasting product inlet 510, the and of water inlet 520
Leaching slurry outlet 530, sulfidation roasting product inlet 510 is connected with sulfidation roasting product exit 440, and water immersion 500 is suitable to
Soaking treatment is carried out to sulfidation roasting product, to obtain leaching slurry.
Equipment for separating liquid from solid 600
According to embodiment of the present utility model, equipment for separating liquid from solid 600 has leaching slurry entrance 610, cobalt nickel leachate
Outlet 620 and leached mud outlet 630, leaching slurry entrance 610 are connected with leaching slurry outlet 530, and equipment for separating liquid from solid 600 is suitable
In carrying out separation of solid and liquid to leaching slurry, to obtain cobalt nickel leachate and leached mud.
According to specific embodiment of the utility model, equipment for separating liquid from solid 600 can be filter, thus, it is possible to enter one
Step improves the efficiency of separation of solid and liquid.
According to embodiment of the present utility model, water immersion 500 and equipment for separating liquid from solid 600 can be utilized to through peroxidating
The sulfidation roasting product that sulfidation roasting handles to obtain carries out Soaking treatment and separation of solid and liquid, to obtain cobalt nickel leachate, and produces
Raw leached mud.
Due to oxidation of sulfureted roasting 400 in carry out oxidation of sulfureted calcination process during, in cobalt-bearing ferronickel powder nickel and
Cobalt is converted into water-soluble nickel sulfate NiSO4With cobaltous sulfate CoSO4, iron can be oxidized to water-insoluble iron oxide, even if there is iron to turn
It is melted into water miscible ferric sulfate Fe2(SO4)3, also can decomposition and inversion be under 500~700 DEG C of oxidation of sulfureted roasting conditions of temperature
Fe2O3, so as to enter in cobalt nickel leachate.Thus, can have by using oxidation of sulfureted calcination process and Soaking treatment
The separation of iron and cobalt nickel is realized to effect, and then significantly improves the grade of cobalt nickel.
Cobalt nickel separating extraction device 700
According to embodiment of the present utility model, there is cobalt nickel separating extraction device 700 cobalt nickel leachate entrance 710, cobalt to produce
Product outlet 720 and nickel products export 730, cobalt nickel leachate entrance 710 are connected with cobalt nickel leachate outlet 620, and the separation of cobalt nickel carries
Device 700 is taken to be suitable to carry out the separation of cobalt nickel and extraction process to cobalt nickel leachate, to obtain cobalt product and nickel product.
According to specific embodiment of the utility model, carry out carrying cobalt carrying nickel processing, tool in cobalt nickel separating extraction device 700
Body can include：Extraction processing is carried out to cobalt nickel leachate, so as to isolated cobalt-carrying solution and solution containing nickel；It is heavy using chemistry
Shallow lake method extracts cobalt and nickel from the cobalt-carrying solution and solution containing nickel respectively, cobalt product and nickel product is obtained, specifically, to institute
Stating addition vulcanized sodium in cobalt-carrying solution and solution containing nickel makes cobalt ions and nickel ion in cobalt-carrying solution and solution containing nickel form vulcanization
Cobalt and nickel sulphide precipitation, cobalt sulfide and nickel sulfide product are obtained after filtering.The whole flow process cobalt rate of recovery more than 90%, nickel recovery
More than 90%.Thus can be effectively to nickel therein using the system of the processing lateritic nickel ore of the utility model above-described embodiment
Reclaimed with cobalt, and the rate of recovery can reach more than 90%, and then significantly improve the recycle value of lateritic nickel ore.
According to specific embodiment of the utility model, cobalt nickel separating extraction device 700, which may further include, to be sequentially connected
Extraction equipment, settling apparatus and filter plant.It is possible thereby to further improve the efficiency of extraction cobalt nickel.
According to the system of the processing lateritic nickel ore of the utility model above-described embodiment, first with direct reduction unit and mill
Ore deposit concentration equipment removed part tailings after direct-reduction processing and mill ore magnetic selection processing are carried out to lateritic nickel ore so that nickel and cobalt
Obtain preliminary purification and enrichment；Secondly oxidation of sulfureted calcination process is carried out to cobalt ferronickel powder in oxidation of sulfureted calciner, obtained
Sulfidation roasting product；Soaking treatment and solid-liquid point are carried out to sulfidation roasting product followed by water immersion and equipment for separating liquid from solid
From removing leached mud so that nickel and cobalt are purified and are enriched with again.Finally cobalt nickel is leached using cobalt nickel separating extraction device
Liquid carry cobalt and proposes nickel processing, finally gives cobalt product and nickel product.Thus the processing of the utility model above-described embodiment is used
The system of lateritic nickel ore can not only be recycled to the cobalt in lateritic nickel ore, and effectively nickel and cobalt can also be purified
And enrichment, its purity is improved, efficiently solves the ferronickel powder value that existing lateritic nickel ore direct-reduction-mill selects technique to obtain
Cobalt is without the problem recycled in low and lateritic nickel ore.
In order to facilitate the system for the processing lateritic nickel ore for understanding the utility model above-described embodiment, below to utilizing the system
The method of processing lateritic nickel ore is described.
According to embodiment of the present utility model, the method for lateritic nickel ore is handled using the system for handling lateritic nickel ore to be included：
(1) lateritic nickel ore, reduction coal and additive are subjected to mixed-forming processing, to obtain mixing pelletizing；(2) mixing pelletizing is entered
Row direct-reduction is handled, to obtain metallized pellet；(3) metallized pellet is subjected to mill ore magnetic selection processing, to be contained
Cobalt ferronickel powder and tailings；(4) cobalt-bearing ferronickel powder is subjected to oxidation of sulfureted calcination process, to obtain sulfidation roasting product；(5) will
Sulfidation roasting product carries out Soaking treatment and separation of solid and liquid, to obtain cobalt nickel leachate and leached mud；(6) by cobalt nickel leachate
Carry cobalt and propose nickel processing, to obtain cobalt product and nickel product.
It is described in detail below with reference to the method for processing lateritic nickel ores of the Fig. 2 to the utility model above-described embodiment.
S100：Mixed-forming processing
According to embodiment of the present utility model, lateritic nickel ore, reduction coal and additive are subjected to mixed-forming processing, so as to
Obtain mixing pelletizing.
According to embodiment of the present utility model, mass fraction containing cobalt is 0.04~0.2% in lateritic nickel ore, existing laterite nickel
The ferronickel powder value that ore deposit direct-reduction-magnetic separation process obtains is low, and nickel content is low, and impurity content is high, and ferronickel powder can not be direct
Raw material as stainless steel smelting, economic value are relatively low；And cobalt does not recycle in lateritic nickel ore.Therefore, existing place
The means of reason lateritic nickel ore need further to improve.
According to embodiment of the present utility model, the proportioning for the lateritic nickel ore of mixed-forming, reduction coal and additive is simultaneously
It is not particularly limited, those skilled in the art can be selected according to being actually needed, according to specific implementation of the present utility model
Example, can be by lateritic nickel ore, reduction coal and additive according to mass ratio 100:(5~25):(3~15) mixed-forming is carried out.By
This, can significantly improve the degree of metalization for the metallized pellet that reduction treatment obtains, so as to significantly improve nickel in ferronickel powder product
Grade.
According to embodiment of the present utility model, the species of additive is not particularly restricted, and those skilled in the art can be with
Selected according to being actually needed, according to specific embodiment of the utility model, additive can include aoxidizing selected from alkali metal
At least one of thing, alkali metal salt, alkaline earth oxide and alkali salt.Inventor has found, by adding these alkali
Property additive, the activity of cobalt-nickel oxide in lateritic nickel ore can be improved, promote the reduction of cobalt nickel.
S200：Direct-reduction is handled
According to embodiment of the present utility model, mixing pelletizing is subjected to direct-reduction processing, to obtain metallized pellet.
Specifically, lateritic nickel ore can be reduced directly using the reduction coal mixed in pelletizing, so as to by the nickel in lateritic nickel ore,
Iron compound is reduced to simple substance, obtains metallized pellet.
According to embodiment of the present utility model, the condition for being reduced directly processing is not particularly restricted, people in the art
Member can be selected according to being actually needed, and according to specific embodiment of the utility model, direct-reduction processing can be 1250
20~40min is carried out under~1350 degrees Celsius to complete.Thus, it is possible to ensure that the nickel Restore All in lateritic nickel ore is metallic state,
Iron is largely reduced to metallic state, at the same the ferronickel of metallic state can agglomeration to certain size, be advantageous to improve follow-up mill
The rate of recovery of nickel when ore deposit magnetic separation is handled.
S300：Mill ore magnetic selection processing
According to embodiment of the present utility model, metallized pellet is subjected to mill ore magnetic selection processing, to obtain cobalt-bearing ferronickel
Powder and tailings.Specifically, after the metallized pellet containing nickel, iron and cobalt simple substance is obtained, it can be handled and removed by mill ore magnetic selection
Remove part tailings so that nickel and cobalt obtain preliminary purification and enrichment.
According to specific embodiment of the utility model, the quality point of cobalt in the cobalt-bearing ferronickel powder obtained after mill ore magnetic selection processing
Number is 0.10~0.35%, and the mass fraction of nickel is 4~10%, and the mass fraction of iron is 50~70%.According to the utility model
Specific embodiment, the mass fraction of cobalt is 0.04~0.2% in lateritic nickel ore.Handled by direct-reduction and mill ore magnetic selection
Afterwards, the mass fraction of cobalt is improved to 0.10~0.35% by 0.04~0.2%, and nickel mass fraction is improved to 4~10%.It can be seen that
By direct-reduction and mill ore magnetic selection processing can cobalt and nickel be effectively enriched with, significantly improve the grade of cobalt and nickel.
S400：Oxidation of sulfureted calcination process
According to embodiment of the present utility model, cobalt-bearing ferronickel powder is subjected to oxidation of sulfureted calcination process, to be vulcanized
Product of roasting.Specifically, during oxidation of sulfureted calcination process, nickel and cobalt are converted into water-soluble nickel sulfate in cobalt-bearing ferronickel powder
NiSO4With cobaltous sulfate CoSO4, subsequently can by water logging by nickel and cobalt Selectively leaching into solution, obtain cobalt nickel leachate.
, can be by the atmosphere rich in sulfur dioxide and oxygen and controlling according to the utility model specific embodiment
500~700 degrees Celsius of temperature carries out oxidation of sulfureted calcination process to cobalt-bearing ferronickel powder so that nickel and cobalt turn in cobalt-bearing ferronickel powder
Turn to water-soluble nickel sulfate NiSO4With cobaltous sulfate CoSO4, subsequently can by Soaking treatment by nickel and cobalt Selectively leaching to molten
In liquid, cobalt nickel leachate is obtained.And the iron in cobalt-bearing ferronickel powder can be oxidized to iron oxide (non-aqueous), even if there is iron to change into
Water miscible ferric sulfate Fe2(SO4)3, also can be Fe in decomposition and inversion under the conditions of 500~700 DEG C of temperature2O3, so as to enter
Into cobalt nickel leachate.Iron and cobalt nickel can be effectively realized from there through oxidation of sulfureted calcination process is carried out under these conditions
Separation, and then significantly improve the grade of cobalt nickel.
According to specific embodiment of the utility model, oxidation of sulfureted calcination process is in the gas rich in sulfur dioxide and oxygen
In atmosphere, carry out what 20~90min was completed at a temperature of 500~700 DEG C.Wherein, in the atmosphere rich in sulfur dioxide and oxygen
The volumetric concentration of sulfur dioxide is 3~15%, and the volumetric concentration of oxygen is 3~15%.Inventor is had found, dioxy is rich in above-mentioned
Under the atmospheric condition for changing sulphur and oxygen, when sintering temperature is too high, i.e., sintering temperature is more than 700 DEG C, nickel sulfate can be decomposed into
Nickel oxide, it is impossible to be flooded out；And when sintering temperature is less than 500 DEG C, one side oxidation of sulfureted calcination is less efficient, separately
Iron is calcined issuable water miscible ferric sulfate Fe by oxidation of sulfureted in one side cobalt-bearing ferronickel powder2(SO4)3, due to sulfuric acid
Iron Fe2(SO4)3It can not be decomposed under conditions of less than 500 DEG C and generate water-insoluble iron oxide Fe2O3, in follow-up Soaking treatment
When can and nickel sulfate NiSO4Together enter in cobalt nickel leachate, efficiently separating for cobalt nickel and iron can not be realized.Thus this practicality is new
Can for 500~700 DEG C by controlling the temperature of oxidation of sulfureted calcination process in the atmosphere rich in sulfur dioxide and oxygen in type
To realize efficiently separating for follow-up cobalt nickel and iron, and oxidation of sulfureted calcination process efficiency is effectively improved, improve nickel and the cobalt rate of recovery.
S500：Soaking treatment and separation of solid and liquid
According to embodiment of the present utility model, sulfidation roasting product is subjected to Soaking treatment and separation of solid and liquid, to obtain
Cobalt nickel leachate and leached mud.From there through further by the above-mentioned sulfidation roasting product obtained by oxidation of sulfureted calcination process
Soaking treatment and separation of solid and liquid are carried out, cobalt nickel leachate can be obtained, and produce leached mud.Leached mud iron content at least 50% can be with
Raw material as blast furnace ironmaking.
During oxidation of sulfureted calcination process, nickel and cobalt are converted into water-soluble nickel sulfate NiSO in cobalt-bearing ferronickel powder4
With cobaltous sulfate CoSO4, iron can be oxidized to water-insoluble iron oxide, even if there is iron to change into water miscible ferric sulfate Fe2
(SO4)3, also can decomposition and inversion be Fe under 500~700 DEG C of oxidation of sulfureted roasting conditions of temperature2O3, so as to which cobalt will not be entered
In nickel leachate.Thus, point of iron and cobalt nickel can be effectively realized by using oxidation of sulfureted calcination process and Soaking treatment
From, and then significantly improve the grade of cobalt nickel.
S600：Carry cobalt and propose nickel processing
According to embodiment of the present utility model, cobalt nickel leachate is carried out carrying cobalt to proposing nickel processing, so as to obtain cobalt product and
Nickel product.It is possible thereby to efficiently separate to obtain cobalt product and nickel product.
According to specific embodiment of the utility model, carrying cobalt and proposing nickel processing to include：Cobalt nickel leachate is extracted
Processing, so as to isolated cobalt-carrying solution and solution containing nickel；Using chemical precipitation method respectively from the cobalt-carrying solution and nickeliferous
Cobalt and nickel are extracted in solution, obtains cobalt product and nickel product, specifically, vulcanization is added into the cobalt-carrying solution and solution containing nickel
Sodium makes cobalt ions and nickel ion in cobalt-carrying solution and solution containing nickel form cobalt sulfide and nickel sulphide precipitation, and cobalt sulfide is obtained after filtering
With nickel sulfide product.
By using the method for the processing lateritic nickel ore of the utility model embodiment, the rate of recovery of final cobalt and nickel can be with
Reach more than 90%, it is possible thereby to effectively reclaim cobalt and nickel in lateritic nickel ore, and then significantly improve the sharp again of lateritic nickel ore
With value.
The method of the processing lateritic nickel ore of the utility model embodiment, carries out lateritic nickel ore to be reduced directly-ore grinding first
Magnetic separation handles to obtain cobalt-bearing ferronickel powder, then carries out sulfur oxide after rich in sulfur dioxide and in the atmosphere of oxygen to cobalt-bearing ferronickel powder
Change calcination process, it is 500~700 DEG C to control sintering temperature, and then the nickel in cobalt-bearing ferronickel powder and cobalt are converted into water-soluble sulphur
Sour nickel SO4With cobaltous sulfate CoSO4, by Soaking treatment by nickel and cobalt Selectively leaching into solution, obtain cobalt nickel leachate.
Cobalt nickel leachate finally handles to obtain cobalt product and nickel product, the whole flow process cobalt rate of recovery more than 90%, nickel using carrying cobalt and carry nickel
The rate of recovery more than 90%.
Below with reference to specific embodiment, the utility model is described, it is necessary to which explanation is, these embodiments are only
Descriptive, without limiting the utility model in any way.
Embodiment 1
By lateritic nickel ore (Co mass fractions 0.04%, Ni mass fractions 2.0%, Fe mass fractions 20%), reduction coal, stone
Lime stone and sodium carbonate by weight proportion 100:15:10:3 progress mixed-formings are handled to obtain mixing pelletizing, and mixing pelletizing is being turned
Direct-reduction processing, reducing condition are carried out in the stove of bottom：1250 DEG C of reduction temperature, recovery time 35min.Reduction obtains gold after terminating
Belong to pellet, mill ore magnetic selection is carried out after metallized pellet water quenching and obtains cobalt-bearing ferronickel powder (Co mass fractions 0.20%, Ni mass point
Number 6.3%, Fe mass fractions 70%) and tailings.Cobalt-bearing ferronickel powder is subjected to oxidation of sulfureted roasting, roasting condition：SO2Volume is dense
Spend 5%, O2Volumetric concentration 5%, sintering temperature are 500 DEG C, roasting time 20min.Roasting enters sulfidation roasting product after terminating
Row Soaking treatment, water logging terminate rear separation of solid and liquid and obtain cobalt nickel leachate and water logging slag.Cobalt nickel leachate first passes around solvent extraction
Separation of Cobalt and Nickel is taken, respectively obtains cobalt-carrying solution and solution containing nickel, vulcanized sodium is added to cobalt-carrying solution and solution containing nickel respectively, obtains
Cobalt sulfide precipitates and nickel sulphide precipitation, and cobalt sulfide product and nickel sulfide product, nickel recovery 90% are obtained after being separated by filtration, and cobalt returns
Yield 90%, iron content 52% can be as the raw material of blast furnace ironmaking in water logging slag.
Embodiment 2
By lateritic nickel ore (Co mass fractions 0.1%, Ni mass fractions 1.6%, Fe mass fractions 25%), reduction coal and stone
Ash by weight proportion 100:20:3 progress mixed-formings are handled to obtain mixing pelletizing, and mixing pelletizing is carried out directly in rotary hearth furnace
Reduction treatment, reducing condition：1320 DEG C of reduction temperature, recovery time 40min.Reduction obtains metallized pellet, metal after terminating
Mill ore magnetic selection is carried out after pellet water quenching and obtains ferronickel powder (Co mass fractions 0.35%, Ni mass fractions 9.3%, Fe mass point
Number 75%) and tailings.Cobalt-bearing ferronickel powder is subjected to oxidation of sulfureted roasting, roasting condition：SO2Volumetric concentration 8%, O2Volumetric concentration
8%, sintering temperature is 600 DEG C, roasting time 40min.It is calcined after terminating and sulfidation roasting product is subjected to Soaking treatment, water logging knot
Separation of solid and liquid obtains cobalt nickel leachate and water logging slag after beam.Cobalt nickel leachate first passes around solvent extraction and separation cobalt nickel, respectively
To cobalt-carrying solution and solution containing nickel, vulcanized sodium is added to cobalt-carrying solution and solution containing nickel respectively, obtains cobalt sulfide precipitation and vulcanization
Nickel is precipitated, and cobalt sulfide product and nickel sulfide product, nickel recovery 92%, the cobalt rate of recovery 92%, water logging slag are obtained after being separated by filtration
Middle iron content 55% can be as the raw material of blast furnace ironmaking.
Embodiment 3
By lateritic nickel ore (Co mass fractions 0.15%, Ni mass fractions 1.2%, Fe mass fractions 40%), reduction coal, disappear
Lime and sodium sulphate by weight proportion 100:25:10:5 progress mixed-formings are handled to obtain mixing pelletizing, and mixing pelletizing is being turned
Direct-reduction processing, reducing condition are carried out in the stove of bottom：1350 DEG C of reduction temperature, recovery time 20min.Reduction obtains gold after terminating
Belong to pellet, mill ore magnetic selection is carried out after metallized pellet water quenching and obtains ferronickel powder (Co mass fractions 0.15%, Ni mass fractions
3.3%, Fe mass fraction 80%) and tailings.Cobalt-bearing ferronickel powder is subjected to oxidation of sulfureted roasting, roasting condition：SO2Volumetric concentration
10%, O2Volumetric concentration 10%, sintering temperature are 700 DEG C, roasting time 60min.Roasting enters sulfidation roasting product after terminating
Row Soaking treatment, water logging terminate rear separation of solid and liquid and obtain cobalt nickel leachate and water logging slag.Cobalt nickel leachate first passes around solvent extraction
Separation of Cobalt and Nickel is taken, respectively obtains cobalt-carrying solution and solution containing nickel, vulcanized sodium is added to cobalt-carrying solution and solution containing nickel respectively, obtains
Cobalt sulfide precipitates and nickel sulphide precipitation, and cobalt sulfide product and nickel sulfide product, nickel recovery 95% are obtained after being separated by filtration, and cobalt returns
Yield 95%, iron content 59% can be as the raw material of blast furnace ironmaking in water logging slag.
Embodiment 4
By lateritic nickel ore (Co mass fractions 0.20%, Ni mass fractions 0.8%, Fe mass fractions 50%), reduction coal, disappear
Lime and sodium sulphate by weight proportion 100:25:10:5 progress mixed-formings are handled to obtain mixing pelletizing, and mixing pelletizing is being turned
Direct-reduction processing, reducing condition are carried out in the stove of bottom：1325 DEG C of reduction temperature, recovery time 25min.Reduction obtains gold after terminating
Belong to pellet, mill ore magnetic selection is carried out after metallized pellet water quenching and obtains ferronickel powder (Co mass fractions 0.10%, Ni mass fractions
2.5%, Fe mass fraction 83%) and tailings.Cobalt-bearing ferronickel powder is subjected to oxidation of sulfureted roasting, roasting condition：SO2Volumetric concentration
1%, O2Volumetric concentration 1%, sintering temperature are 700 DEG C, roasting time 90min.Roasting is carried out sulfidation roasting product after terminating
Soaking treatment, water logging terminate rear separation of solid and liquid and obtain cobalt nickel leachate and water logging slag.Cobalt nickel leachate first passes around solvent extraction
Separation of Cobalt and Nickel, cobalt-carrying solution and solution containing nickel are respectively obtained, add vulcanized sodium to cobalt-carrying solution and solution containing nickel respectively, obtain sulphur
Change cobalt precipitation and nickel sulphide precipitation, cobalt sulfide product and nickel sulfide product, nickel recovery 97%, cobalt recovery are obtained after being separated by filtration
Rate 97%, iron content 62% can be as the raw material of blast furnace ironmaking in water logging slag.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff can be carried out the different embodiments or example and the feature of different embodiments or example described in this specification
With reference to and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (5)
- A kind of 1. system for handling lateritic nickel ore, it is characterised in that including：Mixed-forming device, the mixed-forming device have lateritic nickel ore entrance, reduction coal entrance, additive entrance and mixing Pelletizing exports；Direct reduction unit, the direct reduction unit have mixing pelletizing entrance and metallized pellet outlet, the mixing ball Group's entrance is connected with the mixing pelletizing outlet；Mill ore magnetic selection device, the mill ore magnetic selection device have metallized pellet entrance, the outlet of cobalt-bearing ferronickel powder and tailings outlet, The metallized pellet entrance is connected with metallized pellet outlet；Oxidation of sulfureted calciner, the oxidation of sulfureted calciner have cobalt-bearing ferronickel powder entrance, sulfur dioxide entrance, oxygen Entrance and sulfidation roasting product exit, the cobalt-bearing ferronickel powder entrance are connected with cobalt-bearing ferronickel powder outlet；Water immersion, the water immersion have sulfidation roasting product inlet, water inlet and leaching slurry outlet, the vulcanization roasting Product inlet is burnt with the sulfidation roasting product exit to be connected；Equipment for separating liquid from solid, the equipment for separating liquid from solid have leaching slurry entrance, the outlet of cobalt nickel leachate and leached mud outlet, The leaching slurry entrance is connected with leaching slurry outlet；Cobalt nickel separating extraction device, the cobalt nickel separating extraction device have cobalt nickel leachate entrance, cobalt products export and nickel production Product export, and the cobalt nickel leachate entrance is connected with cobalt nickel leachate outlet.
- 2. the system of lateritic nickel ore is handled according to claim 1, it is characterised in that the direct reduction unit is to turn bottom Stove.
- 3. the system of lateritic nickel ore is handled according to claim 1, it is characterised in that the oxidation of sulfureted calciner is boiling Rise stove.
- 4. the system of lateritic nickel ore is handled according to claim 1, it is characterised in that the equipment for separating liquid from solid is filtering Machine.
- 5. the system of lateritic nickel ore is handled according to claim 1, it is characterised in that the cobalt nickel separating extraction device includes Extraction equipment, settling apparatus and the filter plant being sequentially connected.
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