CN102703685A - Method for smelting low-nickel matte through vulcanizing calines in rotary furnace - Google Patents
Method for smelting low-nickel matte through vulcanizing calines in rotary furnace Download PDFInfo
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- CN102703685A CN102703685A CN2012102078105A CN201210207810A CN102703685A CN 102703685 A CN102703685 A CN 102703685A CN 2012102078105 A CN2012102078105 A CN 2012102078105A CN 201210207810 A CN201210207810 A CN 201210207810A CN 102703685 A CN102703685 A CN 102703685A
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- low nickel
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- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 165
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000003723 Smelting Methods 0.000 title claims abstract description 19
- 238000001354 calcination Methods 0.000 claims abstract description 67
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 239000011504 laterite Substances 0.000 claims abstract description 19
- 229910001710 laterite Inorganic materials 0.000 claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000005987 sulfurization reaction Methods 0.000 claims description 26
- 239000002893 slag Substances 0.000 claims description 23
- 230000002829 reductive effect Effects 0.000 claims description 19
- 229910052717 sulfur Inorganic materials 0.000 claims description 13
- 239000003245 coal Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 4
- 239000011028 pyrite Substances 0.000 claims description 4
- 229910052683 pyrite Inorganic materials 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 241001062472 Stokellia anisodon Species 0.000 claims description 3
- 239000002802 bituminous coal Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910004298 SiO 2 Inorganic materials 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- 239000011734 sodium Substances 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000011593 sulfur Substances 0.000 description 6
- 229910004762 CaSiO Inorganic materials 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 3
- 229910017625 MgSiO Inorganic materials 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 229910000863 Ferronickel Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010446 mirabilite Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a method for smelting low-nickel matte through vulcanizing calines in a rotary furnace, which comprises steps as follow: a) mixing and calcining laterite nickel ores with a reducing agent and a first fluxing medium to obtain the calcines; b) mixing the calcines with a vulcanizing agent and smelting to obtain low-nickel matte products and waste residues, wherein the low nickel matte products comprise the following components in mass percent: 5-20% of Ni, 45-65% of Fe, and 20-50% of S. According to the method for low-nickel matte through vulcanizing the calines in the rotary furnace, the calcines are obtained through calcination and the calcines are smelted, so that the nickel matte products can be obtained; the method has high operability, and can be used for smelting laterite ores in areas lack of electric power; the energy for the whole production process can be provided by coals; during the production process, high-temperature smoke is dedusted and used for thermal energy recovery by means of the waste heat power generation technology; therefore, the energy consumption during the whole smelting process is efficiently lowered.
Description
Technical field
The present invention relates to the Metal smelting technical field, more specifically, the present invention relates to the method that low nickel matte is smelted in a kind of calcining rotary furnace sulfuration.
Background technology
Characteristics such as that nickel has is anti-oxidant, anticorrosive, high temperature resistant, intensity is high, ductility is good; Its purposes very extensively; Especially the consumption proportion in iron and steel and non-ferrous metal metallurgy industry is maximum; Next is applied in industries such as light industry, machinofacture, chemical industry, oil and electric power, and high-technology field is also very vigorous to the demand of nickel.
The reserves of world's continental rise nickel are about 41,700,000,000 tons, and 39.14% form with sulphide ores exists, and about in the world 70% nickel is from sulphide ores, to extract, and compose to exist the nickel in the ore deposit to account for 60.16% of nickel reserves.But along with the nickel sulfide ore of economic utilization and the exhaustion day by day of higher-grade red soil nickel ore resource, the economic development of a large amount of low-grade red soil nickel ores that exist has become the research focus of current metallurgy of nickel.
Yet the smelting process of present red soil nickel ore and device processes ability are lower, and energy consumption is big, is unfavorable for environmental protection, therefore still remain to be improved.At present, laterite mainly utilizes electric furnace process melting ferronickel product, and the product of production is mainly used in the production stainless steel.Utilize existing rotary kiln-eaf process smelting ferronickel product, relatively harsher to the requirement of factory's location EPS, especially lack the area at electric power, be difficult to carry out the production work of the laterite utilization of resources.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or provides a kind of useful commerce to select at least.
For this reason, one object of the present invention is to propose a kind of method that low nickel matte is smelted in the calcining rotary furnace sulfuration simple, that energy consumption is low and feasibility is strong of implementing.
Method according to low nickel matte is smelted in the calcining rotary furnace sulfuration of the embodiment of the invention may further comprise the steps:
A) laterite-type nickel ore and reductive agent and first slag former is baking mixed, obtain calcining;
B) with said calcining with smelt after vulcanizing agent mixes, obtain low nickel matte product and waste residue,
Wherein, the mass percent of Ni is 5～20% in the said low nickel matte product, and the mass percent of Fe is 45～65%, and the mass percent of S is 20～50%.
Method according to low nickel matte is smelted in the calcining rotary furnace sulfuration of the embodiment of the invention obtains calcining through roasting, calcining is smelted again; Can obtain the nickel matte product; This method is workable, can carry out laterite smelting work in the area that electric power lacks, and coal can provide the energy of whole process of production; High-temperature flue gas carries out heat energy recycle through cogeneration technology capable of using after taking off dirt in the production process, reaches the effect of the whole smelting process energy consumption of effective reduction.
In addition, the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to the above embodiment of the present invention can also have following additional technical characterictic:
According to one embodiment of present invention, in said step a), the mass percent of said laterite-type nickel ore, said reductive agent and said first slag former is (60～80): (5～20): (5～20).
According to one embodiment of present invention, said step a) comprises:
A-1) laterite-type nickel ore is mixed the adding dry kiln with coal and carry out drying, obtain dried laterite;
A-2) said dried laterite is mixed the adding calcination rotary kiln with said reductive agent and said first slag former and carry out roasting, obtain said calcining.
According to one embodiment of present invention, said reductive agent is to be selected from bituminous coal, hard coal and the coke one or more.
According to one embodiment of present invention, said step b) comprises:
B-1) said calcining and vulcanizing agent are added in the rotary furnace mix to obtain mixture;
B-2) with smelting in said mixture and second slag former adding electric furnace, obtain low nickel matte product and waste residue.
According to one embodiment of present invention, in said step b), the mass ratio of said calcining, said vulcanizing agent and said second slag former is (65～80): (3～15): (5～10).
According to one embodiment of present invention, at said step b-1) in, the mixing temperature of controlling said mixture is 900～1200 ℃.
According to one embodiment of present invention, said smelting is carried out under 1400～1600 ℃.
According to one embodiment of present invention, said vulcanizing agent is to be selected from sulphur, pyrite, sodium sulfate, calcium sulfate and the sal epsom one or more.
According to one embodiment of present invention, said first slag former and second slag former are to be selected from Wingdale, lime and the rhombspar one or more.
According to one embodiment of present invention, also comprise the steps:
C) said waste residue is carried out recycling to obtain mineral wool and/or manual sandstone.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 smelts the schematic flow sheet of the method for low nickel matte according to the calcining rotary furnace sulfuration of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings.Be exemplary through the embodiment that is described with reference to the drawings below, be intended to be used to explain the present invention, and can not be interpreted as limitation of the present invention.
At first, with reference to figure 1 flow process that the method for low nickel matte is smelted in calcining rotary furnace sulfuration involved in the present invention is described.
Particularly, the method for the low nickel matte of calcining rotary furnace sulfuration smelting involved in the present invention may further comprise the steps:
A) laterite-type nickel ore and reductive agent and first slag former is baking mixed, obtain calcining;
B) with said calcining with smelt after vulcanizing agent mixes, obtain low nickel matte product and waste residue,
Wherein, the mass percent of Ni is 5～20% in the said low nickel matte product, and the mass percent of Fe is 45～65%, and the mass percent of S is 20～50%.
Thus, the method according to low nickel matte is smelted in the calcining rotary furnace sulfuration of the embodiment of the invention obtains calcining through roasting; Calcining is smelted again, can be obtained the nickel matte product, this method is workable; Can carry out laterite smelting work in the area that electric power lacks; And coal can provide the energy of whole process of production, and high-temperature flue gas carries out heat energy recycle through cogeneration technology capable of using after taking off dirt in the production process, reaches the effect of the whole smelting process energy consumption of effective reduction.
About step a), it will be appreciated that the mass percent of said laterite-type nickel ore, said reductive agent and said first slag former is (60～80): (5～20): (5～20).
Selection about said first slag former does not have particular restriction, for example can be to be selected from one or more of Wingdale, lime, yellow soda ash and rhombspar.
The principal reaction of Wingdale in roasting process is:
CaCO
3→CaO+CO
2
CaO+SiO
2→CaSiO
3
The principal reaction of rhombspar in roasting process is:
CaMgCO
3→CaO+MgO+CO
2
CaO+SiO
2→CaSiO
3
MgO+SiO
2→MgSiO
3
The principal reaction of yellow soda ash in roasting process is:
Na
2CO
3→Na
2O+CO
2
Na
2O+SiO
2→Na
2SiO
3
Considering possibly exist in the laterite-type nickel ore than juicy to influence normally carrying out of roasting, can carry out drying to said laterite-type nickel ore and obtain mixing behind the exsiccant laterite-type nickel ore again.The drying plant of said laterite-type nickel ore does not have particular restriction yet, as long as can play the effect of dry laterite-type nickel ore, preferably, said laterite-type nickel ore carries out drying through dry kiln.
Selection about reductive agent it will be appreciated that, said reductive agent has reductibility, and can be used as the fuel use, to reach the temperature of roasting through burning.Consider the cost problem, preferably, said reductive agent can be to be selected from hard coal, bituminous coal and the coke one or more.
The principal reaction of reductive agent in reduction process is:
Fe
2O
3+C→Fe
3O
4+CO
2
Fe
3O
4+C→FeO+CO
2
NiO+C→Ni+CO
2
Method and apparatus about roasting does not have particular restriction, as long as can be at a certain temperature laterite-type nickel ore and reductive agent and the first slag former roasting be obtained calcining.Preferably, can laterite-type nickel ore and reductive agent and first slag former adding calcination rotary kiln be carried out roasting and obtain calcining under 900 ℃.
About in the step b) calcining being smelted the method that obtains nickel matte product and waste residue, it will be appreciated that its smelting process does not have particular restriction, for example can adopt the method for electrosmelting, its concrete operations step can comprise:
B-1) said calcining and vulcanizing agent are added in the rotary furnace mix to obtain mixture;
B-2) with smelting in said mixture and second slag former adding electric furnace, obtain low nickel matte product and waste residue.
Wherein, the mass ratio of said calcining, said vulcanizing agent and said second slag former is (65～80): (3～15): (5～10).
Blending means and equipment about calcining and vulcanizing agent do not have particular restriction, can make it react sulfuration at a certain temperature as long as can calcining be mixed with vulcanizing agent also.Preferably, can calcining and vulcanizing agent be added rotary furnace or mixer, under 900 ℃, vulcanize and obtain mixture.
Selection about said vulcanizing agent it will be appreciated that, the main effect of said vulcanizing agent be with calcining in reaction such as NiO, FeO, NiFe and Ni to form the sulfur-bearing calcining, preferably, said vulcanizing agent can be for being selected from sulphur (S), pyrite (FeS
2), in sodium sulfate and the calcium sulfate one or more.
When selecting sulphur (S) as vulcanizing agent for use, the principal reaction in the electrosmelting process is:
NiO+S→Ni
3S
2+SO
2
FeO+S→FeS+SO
2
NiFe+S→Ni
xFe
1-xS
Ni+S→Ni
3S
2
When selecting pyrite (FeS for use
2) during as vulcanizing agent, the principal reaction in the electrosmelting process is:
FeS
2→FeS+S
2
S
2+NiFe→Ni
xFe
1-xS
S
2+NiO+FeO→Ni
xFe
1-xS+SO
2
NiO+FeS→Ni
xFe
1-xS+SO
2
FeS+NiO+Fe→Ni
3S
2+FeO
When selecting for use sodium sulfate, calcium sulfate or sal epsom to make vulcanizing agent, the principal reaction in the electrosmelting process is respectively:
Na
2SO
4+NiO+SiO
2+CO→Ni
3S
2+Na
2SiO
3+CO
2
CaSO
4+NiO+SiO
2+CO→Ni
3S
2+CaSiO
3+CO
2
MgSO
4+NiO+SiO
2+CO→Ni
3S
2+MgSiO
3+CO
2
Thus, can obtain the sulfur-bearing calcining.Said sulfur-bearing calcining is added electric furnace carry out melting in 1400～1600 ℃, obtain low nickel matte product, wherein, the mass percent of Ni is 5～20% in the said low nickel matte product, and the mass percent of Fe is 45～65%, and the mass percent of S is 20～50%.
Selection about said second slag former does not have particular restriction, for example can be to be selected from one or more of Wingdale, lime, yellow soda ash and rhombspar.
The principal reaction of Wingdale in the electrosmelting process is:
CaCO
3→CaO+CO
2
CaO+SiO
2→CaSiO
3
The principal reaction of rhombspar in the electrosmelting process is:
CaMgCO
3→CaO+MgO+CO
2
CaO+SiO
2→CaSiO
3
MgO+SiO
2→MgSiO
3
The principal reaction of yellow soda ash in the electrosmelting process is:
Na
2CO
3→Na
2O+CO
2
Na
2O+SiO
2→Na
2SiO
3
After adding second slag former, the outflow temperature of waste residue can be reduced to 1400～1550 ℃, has reduced waste residue and has discharged the difficulty of handling, and has reduced cost.
Consider a large amount of by product of generation in the electrosmelting process,, can like waste residue and hot flue gas, carry out recycling by product in order better to play environmental-protection function.Preferably, can be with the processing of gathering dust of said hot flue gas, and the waste heat of said hot flue gas is used for generating; Can also said waste residue be carried out recycling and obtain mineral wool and/or manual sandstone.
Below in conjunction with specific embodiment the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to the present invention is described.
Embodiment 1
Is that 10:1 adds dry rotary kiln with laterite and hard coal by mass ratio, obtains dried laterite 700 ℃ of calcinings.
Dried laterite, hard coal and Wingdale are joined calcination rotary kiln with mass ratio 10:1:1, obtain calcining 900 ℃ of roastings.
Calcining is mixed sulfuration with pyrite with mass ratio 20:1 in rotary furnace, curing temperature is 900 ℃; Rotary furnace sulfur product and Wingdale join in the electric furnace in the 10:1 ratio, and at 1400 ℃ of melting nickel mattes, the mass percent that obtains Ni is 9.5%, and the mass percent of Fe is 58.2%, and the mass percent of S is 32.3% low nickel matte product.
Embodiment 2
Is that 10:1 adds dry rotary kiln with laterite and hard coal by mass ratio, obtains dried laterite 700 ℃ of calcinings.
Dried laterite, hard coal and Wingdale are joined calcination rotary kiln with mass ratio 10:1:1, obtain calcining 900 ℃ of roastings.
Calcining is mixed sulfuration with sulphur with mass ratio 20:1 in mixer, curing temperature is 900 ℃; Mixer sulfur product and Wingdale join in the electric furnace in the 10:1 ratio, and at 1500 ℃ of melting nickel mattes, the mass percent that obtains Ni is 7.2%, and the mass percent of Fe is 57.5%, and the mass percent of S is 35.3% low nickel matte product.
Embodiment 3
Is that 10:1 adds dry rotary kiln with laterite and hard coal by mass ratio, obtains dried laterite 700 ℃ of calcinings.
Dried laterite, coke and Wingdale are joined calcination rotary kiln with mass ratio 10:1:1, obtain calcining 900 ℃ of roastings.
Calcining is mixed sulfuration with mirabilite with mass ratio 20:1 in rotary furnace, curing temperature is 900 ℃; Rotary furnace sulfur product and rhombspar join in the electric furnace in the 10:1 ratio, and at 1600 ℃ of melting nickel mattes, the mass percent that obtains Ni is 8.4%, and the mass percent of Fe is 56.6%, and the mass percent of S is 35.2% low nickel matte product.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (11)
1. the method that low nickel matte is smelted in the sulfuration of calcining rotary furnace is characterized in that, may further comprise the steps:
A) laterite-type nickel ore and reductive agent and first slag former is baking mixed, obtain calcining;
B) with said calcining with smelt after vulcanizing agent mixes, obtain low nickel matte product and waste residue,
Wherein, the mass percent of Ni is 5～20% in the said low nickel matte product, and the mass percent of Fe is 45～65%, and the mass percent of S is 20～50%.
2. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 1; It is characterized in that; In said step a), the mass percent of said laterite-type nickel ore, said reductive agent and said first slag former is (60～80): (5～20): (5～20).
3. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 1 is characterized in that said step a) comprises:
A-1) laterite-type nickel ore is mixed the adding dry kiln with coal and carry out drying, obtain dried laterite;
A-2) said dried laterite is mixed the adding calcination rotary kiln with said reductive agent and said first slag former and carry out roasting, obtain said calcining.
4. the method that low nickel matte is smelted in calcining rotary furnace according to claim 1 sulfuration is characterized in that, said reductive agent is to be selected from bituminous coal, hard coal and the coke one or more.
5. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 1 is characterized in that said step b) comprises:
B-1) said calcining and vulcanizing agent are added in the rotary furnace mix to obtain mixture;
B-2) with smelting in said mixture and second slag former adding electric furnace, obtain low nickel matte product and waste residue.
6. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 5 is characterized in that in said step b), the mass ratio of said calcining, said vulcanizing agent and said second slag former is (65～80): (3～15): (5～10).
7. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 5 is characterized in that, at said step b-1) in, the mixing temperature of controlling said mixture is 900～1200 ℃.
8. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 5 is characterized in that said smelting is carried out under 1400～1600 ℃.
9. the method that low nickel matte is smelted in calcining rotary furnace according to claim 5 sulfuration is characterized in that, said vulcanizing agent is to be selected from sulphur, pyrite, sodium sulfate, calcium sulfate and the sal epsom one or more.
10. the method that low nickel matte is smelted in calcining rotary furnace according to claim 5 sulfuration is characterized in that, said first slag former and second slag former are to be selected from Wingdale, lime and the rhombspar one or more.
11. the method that low nickel matte is smelted in calcining rotary furnace sulfuration according to claim 1 is characterized in that, also comprises the steps:
C) said waste residue is carried out recycling to obtain mineral wool and/or manual sandstone.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109926430A (en) * | 2018-11-19 | 2019-06-25 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of method of heavy metal waste slag reducing-matting smelting disposition |
| CN111378851A (en) * | 2020-04-16 | 2020-07-07 | 中国恩菲工程技术有限公司 | System and method for treating laterite-nickel ore |
| CN111424167A (en) * | 2020-04-16 | 2020-07-17 | 中国恩菲工程技术有限公司 | Method for treating laterite-nickel ore |
| CN115852165A (en) * | 2022-12-05 | 2023-03-28 | 山东鑫海科技股份有限公司 | Method for producing low-nickel matte from laterite-nickel ore |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358291A (en) * | 2008-07-16 | 2009-02-04 | 朝阳昊天有色金属有限公司 | Feedstock for preparing low nickel matte |
| CN102234717A (en) * | 2011-03-29 | 2011-11-09 | 中国恩菲工程技术有限公司 | Method for roasting red mud nickel ore |
-
2012
- 2012-06-18 CN CN2012102078105A patent/CN102703685A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358291A (en) * | 2008-07-16 | 2009-02-04 | 朝阳昊天有色金属有限公司 | Feedstock for preparing low nickel matte |
| CN102234717A (en) * | 2011-03-29 | 2011-11-09 | 中国恩菲工程技术有限公司 | Method for roasting red mud nickel ore |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109926430A (en) * | 2018-11-19 | 2019-06-25 | 云南省环境科学研究院(中国昆明高原湖泊国际研究中心) | A kind of method of heavy metal waste slag reducing-matting smelting disposition |
| CN111378851A (en) * | 2020-04-16 | 2020-07-07 | 中国恩菲工程技术有限公司 | System and method for treating laterite-nickel ore |
| CN111424167A (en) * | 2020-04-16 | 2020-07-17 | 中国恩菲工程技术有限公司 | Method for treating laterite-nickel ore |
| CN111378851B (en) * | 2020-04-16 | 2023-09-19 | 中国恩菲工程技术有限公司 | System and method for treating laterite nickel ore |
| CN115852165A (en) * | 2022-12-05 | 2023-03-28 | 山东鑫海科技股份有限公司 | Method for producing low-nickel matte from laterite-nickel ore |
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