CN106065436A - A kind of method and system processing vanadium slag - Google Patents
A kind of method and system processing vanadium slag Download PDFInfo
- Publication number
- CN106065436A CN106065436A CN201610566949.7A CN201610566949A CN106065436A CN 106065436 A CN106065436 A CN 106065436A CN 201610566949 A CN201610566949 A CN 201610566949A CN 106065436 A CN106065436 A CN 106065436A
- Authority
- CN
- China
- Prior art keywords
- vanadium
- calcium
- vanadium slag
- acid
- slag
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 267
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 265
- 239000002893 slag Substances 0.000 title claims abstract description 158
- 238000000034 method Methods 0.000 title claims abstract description 92
- 238000012545 processing Methods 0.000 title claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 83
- 230000003647 oxidation Effects 0.000 claims abstract description 64
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 64
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 34
- 229940043430 calcium compound Drugs 0.000 claims abstract description 31
- 150000001674 calcium compounds Chemical class 0.000 claims abstract description 31
- 238000002386 leaching Methods 0.000 claims abstract description 31
- 238000007885 magnetic separation Methods 0.000 claims abstract description 27
- 238000001556 precipitation Methods 0.000 claims abstract description 23
- 159000000007 calcium salts Chemical class 0.000 claims abstract description 19
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 62
- DNWNZRZGKVWORZ-UHFFFAOYSA-N calcium oxido(dioxo)vanadium Chemical compound [Ca+2].[O-][V](=O)=O.[O-][V](=O)=O DNWNZRZGKVWORZ-UHFFFAOYSA-N 0.000 claims description 56
- 238000001354 calcination Methods 0.000 claims description 52
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 13
- 239000008346 aqueous phase Substances 0.000 claims description 13
- 239000011575 calcium Substances 0.000 claims description 13
- 229910052791 calcium Inorganic materials 0.000 claims description 13
- 229940056319 ferrosoferric oxide Drugs 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- WQEVDHBJGNOKKO-UHFFFAOYSA-K vanadic acid Chemical compound O[V](O)(O)=O WQEVDHBJGNOKKO-UHFFFAOYSA-K 0.000 claims description 8
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 7
- 239000001110 calcium chloride Substances 0.000 claims description 7
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 7
- 239000006148 magnetic separator Substances 0.000 claims description 7
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 claims description 4
- 229910000020 calcium bicarbonate Inorganic materials 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- XDBSEZHMWGHVIL-UHFFFAOYSA-M hydroxy(dioxo)vanadium Chemical compound O[V](=O)=O XDBSEZHMWGHVIL-UHFFFAOYSA-M 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 2
- 210000000038 chest Anatomy 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 38
- 238000011084 recovery Methods 0.000 abstract description 23
- 230000008859 change Effects 0.000 abstract description 17
- 238000000605 extraction Methods 0.000 abstract description 15
- 230000004044 response Effects 0.000 abstract description 7
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 29
- 239000000292 calcium oxide Substances 0.000 description 17
- 238000003723 Smelting Methods 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 10
- 230000002308 calcification Effects 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000000284 extract Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 4
- 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 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 4
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 229910052682 stishovite Inorganic materials 0.000 description 4
- 229910052905 tridymite Inorganic materials 0.000 description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 241001062472 Stokellia anisodon Species 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 235000015598 salt intake Nutrition 0.000 description 2
- 229910001948 sodium oxide Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052840 fayalite Inorganic materials 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- JBIQAPKSNFTACH-UHFFFAOYSA-K vanadium oxytrichloride Chemical compound Cl[V](Cl)(Cl)=O JBIQAPKSNFTACH-UHFFFAOYSA-K 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of method and system processing vanadium slag, belong to the extraction field of valuable metal in vanadium slag.First the present invention discloses a kind of method processing vanadium slag, and vanadium slag first passes through oxidation magnetizing roast, makes the ferrum in vanadium slag change into magnetic ferroferric oxide and carries out magnetic separation recovery, reclaims the vanadium slag after ferrum and make vanadium be enriched with, and obtains nonmagnetic rich vanadium slag；Recycle the acid-leaching vanadium-extracted method of oxidizing roasting after allocating rich vanadium slag into calcium salt and reclaim the vanadium in rich vanadium slag, it is achieved ferrum and the step by step arithmetic of vanadium in vanadium slag.The present invention further discloses a kind of system implementing described vanadium slag treatment method, including: oxidation magnetizing roasting device, concentration equipment, oxidation roasting with calcium compounds device, acid-leaching vanadium-extracted device and precipitation calciner plant.The present invention processes the method and system of vanadium slag, high to the response rate of ferrum in vanadium slag and vanadium, it is achieved that the comprehensive utilization of vanadium slag and simple to operate.
Description
Technical field
The present invention relates to a kind of method processing vanadium slag, particularly relate to a kind of from vanadium slag, extract valuable element ferrum and vanadium
Method, the invention still further relates to a kind of system implementing described method, belongs to the extraction field of valuable metal in vanadium slag.
Background technology
Vanadium has good plasticity, can roll into sheet, paper tinsel at normal temperatures and draw wire, and has elastic and prolong under uniform temperature
Malleability；The elements such as a small amount of intergranular impurity, particularly C, O, N and H, can make its hardness and fragility increase, but make its ductility
Decline.Vanadium has higher impact value, good weldability and conductivity of heat, has sea water, aqueous slkali, organic acid relatively with mineral acid
Good corrosion resistance, can be used as the structural material of boats and ships and the material of chemical vessel, seamless thin wall pipe etc..
The vanadium that there are about 60% in the world extracts from vanadium slag.Vanadium slag refers to that vanadium-bearing hot metal is oxidized into through bessemerizing
Rich in barium oxide and a kind of slag of iron oxides.Vanadium slag is by MFe, FeO, SiO2、V2O3、TiO2、CaO、Al2O3、
MgO、Cr2O3Constitute etc. component.The extraction vanadium method of existing vanadium slag be mix with additive after put into rotary kiln or multiple hearth furnace enters
Row oxidizing roasting, obtains the vanadate of solubility, is sunk by vanadium by wet-leaching means after solid phase transfers to liquid phase again
Vanadium, obtains V by the calcining of precipitation product2O5Product.Additionally, the melted direct oxidation method that also development in recent years is got up, sub-molten salt method
Vanadium extraction means new with dchlorine metallurgy method etc..
The composition of typical oxidation sodium tailings in vanadium extraction is (%): Fe2O3 40.46、Na2O 8.05、TiO2 11.86、
V2O5 1.27、MnO 7.84、SiO2 17.09、Al2O3 4.72、CaO 1.94、MgO 3.38、Cr2O32.17.Visible, existing
Vanadium slag in order to improve the leaching rate of vanadium, is aoxidized thoroughly by technology by the oxidizing roasting of vanadium slag as far as possible, and now ferrum is with Fe2O3's
Form is existed and can not be extracted by conventional magnetic separation means, causes ferrum to be wasted.
Owing to the value of vanadium is far above ferrum, so the focus to Leaching of Vanadium from Vanadium slag research is the response rate how improving vanadium, and
The recovery of ferrum in vanadium slag rarely had report.Chinese patent application publication No. CN 103305706 A proposes a kind of vanadium slag calcification baking
The method of cooling vanadium extraction, vanadium slag is carried out calcification baking under conditions of 700～950 DEG C by the method, and the temperature of product of roasting exists
Within being cooled to 400～600 DEG C in 20～120min, the product after being cooled down carries out acid-leaching vanadium-extracted.Chinese patent application is public
Cloth CN 102086487 A proposes a kind of method that energy-saving and emission-reduction process vanadium slag, the method vanadium slag direct oxidation to molten state
Sodium processes, and uses existing water logging technique to carry out vanadium extraction after obtaining water miscible vanadic acid sodium, and the method can effectively utilize vanadium
The physical thermal of coming out of the stove of slag.Chinese patent application publication No. CN 102127655 A proposes a kind of sodium hydroxide solution normal pressure and decomposes vanadium
The method of slag, carries out sodium hydroxide solution Oxidation Leaching to vanadium slag in the method oxidizing atmosphere at ambient pressure, finally gives hydrogen
The mixed slurry of sodium oxide, vanadic acid sodium, sodium chromate and tailings；Obtain after solid-liquid separation containing vanadium aqueous solution.Chinese patent application
Publication No. CN 105219975 A proposes the processing method of a kind of vanadium slag, and molten state vanadium slag is directly carried out aoxidizing calcification by the method
Process, the vanadium slag after oxidation calcification, cool down, crush, carry out V after magnetic separation2O5Produce.Chinese patent application publication No. CN
101709388 A propose the technique of a kind of separating vanadium by chloridizing and roasting vanadium slag, and first vanadium slag is carried out levigate process and obtain by the method
Vanadium slag micropowder, obtains roasting material after oxidizing roasting, obtain roasting material micropowder after roasting material is levigate, then with carbonaceous reducing agent, chlorination
Carrying out chloridising roasting 2～4 hours at 500～700 DEG C after agent mixing, obtaining vanadium oxytrichloride is gaseous material, it is achieved that dividing of vanadium
From.
As fully visible, although prior art uses a lot of method, such as sodium oxide baking, calcium oxide to the process of vanadium slag
Change roasting, wet method directly process, chloridising roasting, molten state directly process etc., but all do not account for the recovery of ferrum, cause resource
Waste.It would therefore be highly desirable to develop a kind of new method comprehensively utilizing vanadium slag, it is achieved Vanadium in Vanadium Residue and the recovery of ferrum.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of method processing vanadium slag, and the method is capable of
From vanadium slag, substep reclaims ferrum and vanadium, and the response rate of ferrum and vanadium is high, simple to operate；
Another technical problem to be solved by this invention is to provide a kind of system implementing described vanadium slag treatment method.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
First the present invention discloses a kind of method processing vanadium slag, comprises the following steps: vanadium slag is carried out oxidation magnetization by (1)
Roasting, obtains magnetic calcining；(2) magnetic calcining is carried out magnetic separation, obtain ferroso-ferric oxide and rich vanadium slag；(3) by richness vanadium slag with
Calcium salt mixes, and carries out oxidation roasting with calcium compounds, obtains acid-soluble calcium vanadate grog；(4) acid-soluble calcium vanadate grog is carried out acidleach,
Calcium vanadate is extracted aqueous phase, obtains containing vanadium leachate；(5) vanadium leachate will be contained and carry out precipitation, calcining, obtain five oxidations two
Vanadium, to obtain final product.
Wherein step (1), according to mass percent, iron-holder >=20% of described vanadium slag, pentoxide content exists
10-20%；The temperature of described oxidation magnetizing roast is 300-500 DEG C, and oxygen concentration by volume percentages is 0.5%-2%,
Time is 5-20min.In step (1) described magnetic calcining, the ferrum in ferroso-ferric oxide accounts for full ferrum ratio >=90%.Step (3)
Described rich vanadium slag is 100:5-30 with the weight ratio of calcium salt；Described calcium salt is selected from: calcium carbonate, calcium oxide, calcium chloride, calcium bicarbonate
Or in calcium hydroxide any one or more than one according to arbitrary proportion composition mixture；The temperature of described oxidation roasting with calcium compounds
Degree is for 800-1300 DEG C, and the time is 1-2h.In the described acid-soluble calcium vanadate grog of step (3), trivalent vanadium accounts for the ratio of full vanadium not
Higher than 5%.Step (4) described calcium vanadate includes: any one or the one in positive calcium vanadate, pyrovanadic acid calcium or metavanadic acid calcium with
On according to arbitrary proportion composition mixture.
The present invention processes the method for vanadium slag, and vanadium slag first passes through oxidation magnetizing roast, makes ferrum in vanadium slag change into magnetic four
Fe 3 O, then carries out magnetic separation recovery；Reclaiming the vanadium slag after ferrum makes vanadium be enriched with, and obtains nonmagnetic rich vanadium slag.By richness
Vanadium slag obtains the vanadium slag grog containing acid-soluble calcium vanadate by oxidation roasting with calcium compounds after allocating calcium salt into, recycles acid-leaching vanadium-extracted hands
Section makes the calcium vanadate entrance aqueous phase in rich vanadium slag grog obtain containing vanadium leachate, finally will contain vanadium leachate and carry out precipitation-calcining
Process to obtain vanadic anhydride.Thus, the inventive method is first extracted ferrum from vanadium slag, is extracted vanadium again, it is achieved that have in vanadium slag
Valency elemental iron and the step by step arithmetic of vanadium.
The method reaction principle that the present invention processes vanadium slag is as follows: in vanadium slag, ferrum is mainly with vanadium iron spinelle FeO V2O3And ferrum
Olivine FeO SiO2Presented in, the present invention first carries out aoxidizing magnetizing roast and obtains magnetic calcining vanadium slag, generation anti-
Should be as shown in (1)～(3):
3(2FeO·SiO2)+O2=2Fe3O4+3SiO2 (1)
6(FeO·V2O3)+O2=2Fe3O4+6V2O3 (2)
2V2O3+O2=2V2O4 (3)
FeO in vanadium iron spinelle and fayalite is oxidized to Fe3O4, magnetic calcining after magnetic separation by Fe3O4Carry out
Reclaiming, the vanadium part in rich vanadium slag is aoxidized thus with V2O3And V2O4Presented in, under oxidation roasting with calcium compounds occurs
The reaction in face:
CaO+V2O3+O2=CaO V2O5(metavanadic acid calcium)
CaO+V2O4+0.5O2=CaO V2O5(metavanadic acid calcium)
CaO+V2O4=CaO V2O4(tetravalence calcium vanadate)
When CaO excess, it is also possible to the conversion reaction of following calcium vanadate occurs:
CaO·V2O5+ CaO=2CaO V2O5(pyrovanadic acid calcium)
2CaO·V2O5+ CaO=3CaO V2O5(positive calcium vanadate)
Above-mentioned three kinds of calcium vanadate are all acid soluble, by acidleach, the calcium vanadate obtained is entered into aqueous phase and divides mutually with slag
From, recycle existing precipitation-calcine technology and produce vanadic anhydride.
The present invention is found by substantial amounts of experiment, in the method processing vanadium slag, oxidation magnetizing roast temperature is 300 DEG C-
500 DEG C, the time is 5min-20min, and the response rate of ferrum is the highest.When aoxidizing that magnetizing roast temperature is too high or during overlong time, in a large number
Fe3O4Fe can be changed into2O3, it is impossible to collected by magnetic separation；When oxidation magnetizing roast temperature is too low or the time is too short, Fe oxygen
Metaplasia becomes Fe3O4Reaction carry out insufficient, affect the recovery of ferrum.It addition, rich vanadium slag and calcium salt are by weight for 100:(5-
30), the response rate of vanadium is the highest；When calcium salt consumption is very few, it is insufficient that the reaction of formation of calcium vanadate is carried out, and finally affects vanadium
Leach；And when calcium salt consumption is too much, the leaching rate of vanadium can not be improved, too much calcium salt also can consume in follow-up acidleach
Substantial amounts of acid, improves the leaching cost of vanadium.
The application present invention processes the method for vanadium slag and extracts valuable element ferrum and vanadium from vanadium slag, and result iron recovery reaches
90%-96%, vanadium recovery reaches the response rate of 96%-99%, ferrum and vanadium and is significantly increased.
The present invention further discloses a kind of system implementing above-mentioned vanadium slag treatment method, including: oxidation magnetizing roast dress
Put, concentration equipment, oxidation roasting with calcium compounds device, acid-leaching vanadium-extracted device and precipitation-calciner plant.The present invention is for processing vanadium slag
The structural representation of system is as shown in Figure 1.
Wherein, described oxidation magnetizing roasting device is provided with vanadium slag entrance and the outlet of magnetic calcining；Described concentration equipment is provided with
The outlet of magnetic calcining entrance, ferroso-ferric oxide and rich vanadium slag outlet；Described oxidation roasting with calcium compounds device is provided with rich vanadium slag entrance, calcium
Salt entrance and the outlet of acid-soluble calcium vanadate grog；Described acid-leaching vanadium-extracted device is provided with acid-soluble calcium vanadate grog entrance, soaks containing vanadium
Eluate outlet and acid leaching residue outlet；Described precipitation-calciner plant is provided with containing vanadium leachate entrance, vanadic anhydride outlet and tailings
Outlet.Further, the magnetic calcining of described oxidation magnetizing roasting device exports the magnetic calcining entrance with described concentration equipment
It is connected；The rich vanadium slag outlet of described concentration equipment is connected with the rich vanadium slag entrance of described oxidation roasting with calcium compounds device；Described oxidation
The acid-soluble calcium vanadate grog outlet of calcification baking device and the acid-soluble calcium vanadate grog entrance phase of described acid-leaching vanadium-extracted device
Even；The outlet containing vanadium leachate of described acid-leaching vanadium-extracted device is connected with the entrance containing vanadium leachate of described precipitation-calciner plant.
It is any one that oxidation magnetizing roasting device of the present invention is selected from rotary hearth furnace, rotary kiln, car-bottom furnace or tunnel cave
Kind.It is any one that described oxidation roasting with calcium compounds device is selected from rotary hearth furnace, rotary kiln, wedge furnance, car-bottom furnace or tunnel cave
Kind.Described concentration equipment can be dry-type magnetic selection apparatus or wet magnetic separation equipment, it is also possible to is magnetic separator or magnetic separation tube.Described
Acid-leaching vanadium-extracted device is acidproof mechanical agitating tank and concentrator.Described precipitation-calciner plant is precipitation device and calciner plant
Linkage, wherein precipitation device is retort, and calciner plant is reverberatory furnace.
The present invention processes in the system of vanadium slag, and described oxidation magnetizing roasting device for carrying out oxidation magnetizing roast by vanadium slag
Smelt, to obtain magnetic calcining.Described concentration equipment, for reclaiming magnetic ferroferric oxide from magnetic calcining by magnetic separation, returns
Receive the vanadium slag iron content composition after ferrum to reduce, make vanadium be enriched with, obtain the extraction of nonmagnetic rich vanadium slag, beneficially vanadium.Described
Oxidation roasting with calcium compounds device is for carrying out oxidation roasting with calcium compounds, to obtain the vanadium containing acid-soluble calcium vanadate by richness vanadium slag and calcium salt
Slag grog.Described acid-leaching vanadium-extracted device is for carrying out acidleach to acid-soluble calcium vanadate grog, so that calcium vanadate is extracted aqueous phase, with
Slag is separated, and obtains containing vanadium leachate.Described precipitation-calciner plant for will contain vanadium leachate carry out precipitation and calcination processing with
Obtain vanadic anhydride；Wherein, the function of precipitation device is will be containing the vanadium in vanadic acid immersion with under the form precipitation of ammonium poly-vanadate
Come；The function of calciner plant is to make ammonium poly-vanadate decomposes generate vanadic anhydride.Thus, apply system of the present invention first
Extract ferrum, then extract vanadium, it is achieved valuable element ferrum and the step by step arithmetic of vanadium in vanadium slag.It addition, the structure of system of the present invention
Simply, it is easy to operation, can apply to serialization large-scale production.
Technical solution of the present invention compared with prior art, has the advantages that
The present invention processes the method for vanadium slag, and vanadium slag first passes through oxidation magnetizing roast, makes the ferrum in vanadium slag change into magnetic
Ferroso-ferric oxide, first reclaims ferrum by magnetic separation；And reclaim the vanadium slag after ferrum and make vanadium be enriched with, be more beneficial for follow-up roasting and
Wet underwater welding, extracts vanadium through oxidation roasting with calcium compounds again by richness vanadium slag.The present invention carries out substep to the ferrum in vanadium slag and vanadium resource
Extract, it is achieved that ferrum and the recovery of v element in vanadium slag, and the response rate of ferrum and vanadium is significantly increased, and makes vanadium slag resource obtain
Comprehensive utilization.The present invention processes the method and system of vanadium slag, simple to operate, it is achieved easily, be suitable to serialization large-scale production.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention processes the system of vanadium slag.
Detailed description of the invention
Below in conjunction with specific embodiment further describe the present invention, advantages of the present invention and feature will be with describe and
Apparent.It should be understood that described embodiment is only exemplary, the scope of the present invention is not constituted any restriction.This area
Skilled artisans appreciated that, lower without departing from the spirit and scope of the present invention can to the details of technical solution of the present invention and
Form is modified or replaces, but these amendments or replacement each fall within protection scope of the present invention.
As it is shown in figure 1, the present invention processes the system of vanadium slag, including: oxidation magnetizing roasting device 1, concentration equipment 2, oxidation
Calcification baking device 3, acid-leaching vanadium-extracted device 4 and precipitation-calciner plant 5.
Wherein, oxidation magnetizing roasting device 1 includes vanadium slag entrance and the outlet of magnetic calcining.Concentration equipment 2 includes that magnetic roasts
The outlet of sand entrance, ferroso-ferric oxide and rich vanadium slag outlet.Oxidation roasting with calcium compounds device 3 include rich vanadium slag entrance, calcium salt entrance and
Acid-soluble calcium vanadate grog exports.Acid-leaching vanadium-extracted device 4 includes acid-soluble calcium vanadate grog entrance, containing vanadium leachate outlet and acid
Leaching slag outlet.Precipitation-calciner plant 5 includes containing vanadium leachate entrance, vanadic anhydride outlet and tailings outlet.
Further, the magnetic calcining of oxidation magnetizing roasting device 1 exports the magnetic calcining entrance phase with concentration equipment 2
Even；The rich vanadium slag outlet of concentration equipment 2 is connected with the rich vanadium slag entrance of oxidation roasting with calcium compounds device 3；Oxidation roasting with calcium compounds device 3
Acid-soluble calcium vanadate grog outlet be connected with the acid-soluble calcium vanadate grog entrance of acid-leaching vanadium-extracted device 4；Acid-leaching vanadium-extracted device 4
Containing vanadium leachate outlet be connected with the entrance containing vanadium leachate of precipitation-calciner plant 5.
The present invention processes the system of vanadium slag, and the vanadium slag entrance of the oxidized magnetizing roasting device of vanadium slag 1 enters oxidation Roasting
Burn device 1, carry out aoxidizing magnetizing roast and smelt, obtain magnetic calcining.Magnetic calcining enters through the magnetic calcining entrance of concentration equipment 2
Enter concentration equipment 2, carry out magnetic separation, from magnetic calcining, reclaim magnetic ferroferric oxide, reclaim the vanadium slag iron content composition after ferrum and subtract
Few, make vanadium be enriched with, obtain nonmagnetic rich vanadium slag.The rich vanadium slag entrance of rich vanadium slag oxidized calcification baking device 3 enters
Oxidation roasting with calcium compounds device 3, calcium salt enters oxidation roasting with calcium compounds device 3 through calcium salt entrance, and rich vanadium slag carries out calcium oxide with calcium salt
Change roasting, obtain acid-soluble calcium vanadate grog.Acid-soluble calcium vanadate grog is through the acid-soluble calcium vanadate grog of acid-leaching vanadium-extracted device 4
Entrance enters acid-leaching vanadium-extracted device 4, acid-soluble calcium vanadate grog is carried out acidleach, so that calcium vanadate is extracted aqueous phase, with slag phase
Separate, obtain containing vanadium leachate.Containing vanadium leachate filling containing vanadium leachate entrance entrance precipitation-calcining through precipitation-calciner plant 5
Put 5, carry out precipitation and calcination processing, obtain vanadic anhydride；Wherein, the function of precipitation device is by containing the vanadium in vanadic acid immersion
Precipitate with the form of ammonium poly-vanadate；The function of calciner plant is to make ammonium poly-vanadate decomposes generate vanadic anhydride.
The present invention aoxidizes any one in rotary hearth furnace, rotary kiln, car-bottom furnace or tunnel cave of magnetizing roasting device 1.
Concentration equipment 2 can be dry-type magnetic selection apparatus or wet magnetic separation equipment, it is also possible to is magnetic separator or magnetic separation tube.Oxidation calcification roasting
Burn any one in rotary hearth furnace, rotary kiln, wedge furnance, car-bottom furnace or tunnel cave of device 3.Acid-leaching vanadium-extracted device 4
For acidproof mechanical agitating tank and concentrator.Precipitation-calciner plant 5 is the linkage of precipitation device and calciner plant, Qi Zhongchen
Vanadium device is retort, and calciner plant is reverberatory furnace.
" being connected " of the present invention can be fixing connection, it is also possible to is to removably connect；Can be to be mechanically connected, it is possible to
To be electrical connection；Can be to be directly connected to, it is also possible to be to be indirectly connected to by intermediary.
Embodiment 1 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 35%, vanadic anhydride 16%) in rotary kiln aoxidizing magnetic
Change calcination process, temperature 300 DEG C, oxygen concentration 0.5%, roasting time 5min, obtain magnetic calcining, wherein in ferroso-ferric oxide
Ferrum to account for full ferrum ratio be 92%；In concentration equipment (magnetic separator), magnetic calcining is carried out magnetic separation process, obtain magnetic four oxygen
Change three-iron and rich vanadium slag, iron recovery 90%.By rich by weight ratio to richness vanadium slag and calcium carbonate (analytical pure, content 99.5%) vanadium
Slag: calcium carbonate=100:30 carries out dispensing batch mixing, compound adds tunnel cave and carries out oxidation roasting with calcium compounds smelting, smelting temperature
800 DEG C, roasting time 1.5h, obtain acid-soluble calcium vanadate grog, wherein trivalent vanadium accounts for full vanadium ratio 4.5%.Acid-soluble vanadic acid
Calcium vanadate, through acidleach device (acidproof mechanical agitating tank and concentrator), is extracted to be formed in aqueous phase and is leached containing vanadium by calcium clinker
Liquid, finally utilizes existing in precipitation-calciner plant (precipitation device is retort, and calciner plant is reverberatory furnace) containing vanadium leachate
Ripe precipitation-calcine technology produces vanadic anhydride, vanadium recovery 96%.
Embodiment 2 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 42%, vanadic anhydride 20%) in rotary hearth furnace aoxidizing magnetic
Change calcination process, temperature 400 DEG C, oxygen concentration 1%, roasting time 10min, obtain magnetic calcining, wherein in ferroso-ferric oxide
Ferrum to account for full ferrum ratio be 90%；In concentration equipment (magnetic separator), magnetic calcining is carried out magnetic separation process, obtain magnetic four oxygen
Change three-iron and rich vanadium slag, iron recovery 92%.By rich by weight ratio to richness vanadium slag and calcium oxide (analytical pure, content 99.5%) vanadium
Slag: calcium oxide=100:5 carries out dispensing batch mixing, compound adds rotary kiln and carries out oxidation roasting with calcium compounds smelting, smelting temperature
1000 DEG C, roasting time 2h, obtain acid-soluble calcium vanadate grog, wherein trivalent vanadium accounts for full vanadium ratio 3.5%.Acid-soluble calcium vanadate
Calcium vanadate, through acidleach device (acidproof mechanical agitating tank and concentrator), is extracted and is formed containing vanadium leachate in aqueous phase by grog,
Finally in precipitation-calciner plant (precipitation device is retort, and calciner plant is reverberatory furnace), existing one-tenth is utilized containing vanadium leachate
Ripe precipitation-calcine technology produces vanadic anhydride, vanadium recovery 97%.
Embodiment 3 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 25%, vanadic anhydride 14%) in rotary hearth furnace aoxidizing magnetic
Change calcination process, temperature 500 DEG C, oxygen concentration 1.5%, roasting time 15min, obtain magnetic calcining, wherein ferroso-ferric oxide
In ferrum to account for full ferrum ratio be 94%；In concentration equipment (magnetic separation tube), magnetic calcining is carried out magnetic separation process, obtain magnetic four
Fe 3 O and rich vanadium slag, iron recovery 95%.By richness vanadium slag and calcium hydroxide (analytical pure, content 99.5%) by weight ratio
Rich vanadium slag: calcium hydroxide=100:15 carries out dispensing batch mixing, compound adds rotary kiln and carries out oxidation roasting with calcium compounds smelting, smelts
Temperature 1100 DEG C, roasting time 1h, obtain acid-soluble calcium vanadate grog, wherein trivalent vanadium accounts for full vanadium ratio 5%.Acid-soluble vanadic acid
Calcium vanadate, through acidleach device (acidproof mechanical agitating tank and concentrator), is extracted to be formed in aqueous phase and is leached containing vanadium by calcium clinker
Liquid, finally utilizes existing in precipitation-calciner plant (precipitation device is retort, and calciner plant is reverberatory furnace) containing vanadium leachate
Ripe precipitation-calcine technology produces vanadic anhydride, vanadium recovery 98%.
Embodiment 4 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 30%, vanadic anhydride 15%) in car-bottom furnace aoxidizing magnetic
Change calcination process, temperature 450 DEG C, oxygen concentration 2%, roasting time 20min, obtain magnetic calcining, wherein in ferroso-ferric oxide
Ferrum to account for full ferrum ratio be 95%；In concentration equipment (magnetic separation tube), magnetic calcining is carried out magnetic separation process, obtain magnetic four oxygen
Change three-iron and rich vanadium slag, iron recovery 96%.By rich by weight ratio to richness vanadium slag and calcium chloride (analytical pure, content 99.5%) vanadium
Slag: calcium chloride=100:20 carries out dispensing batch mixing, compound adds rotary hearth furnace and carries out oxidation roasting with calcium compounds smelting, smelting temperature
1300 DEG C, roasting time 1.5h, obtain acid-soluble calcium vanadate grog, wherein trivalent vanadium accounts for full vanadium ratio 2.5%.Acid-soluble vanadic acid
Calcium vanadate, through acidleach device (acidproof mechanical agitating tank and concentrator), is extracted to be formed in aqueous phase and is leached containing vanadium by calcium clinker
Liquid, finally utilizes existing in precipitation-calciner plant (precipitation device is retort, and calciner plant is reverberatory furnace) containing vanadium leachate
Ripe precipitation-calcine technology produces vanadic anhydride, vanadium recovery 99%.
Embodiment 5 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 20%, vanadic anhydride 10%) in tunnel cave aoxidizing magnetic
Change calcination process, temperature 350 DEG C, oxygen concentration 1.5%, roasting time 15min, obtain magnetic calcining, wherein ferroso-ferric oxide
In ferrum to account for full ferrum ratio be 91%；In concentration equipment (magnetic separator), magnetic calcining is carried out magnetic separation process and obtains magnetic four oxygen
Change three-iron and rich vanadium slag, iron recovery 92%.By rich by weight ratio to richness vanadium slag and calcium bicarbonate (analytical pure, content 99.5%)
Vanadium slag: calcium bicarbonate=100:10 carries out dispensing batch mixing, compound adds wedge furnance and carries out oxidation roasting with calcium compounds smelting, smelting
Refining temperature 900 DEG C, roasting time 1.5h, obtain acid-soluble calcium vanadate grog, wherein trivalent vanadium accounts for full vanadium ratio 2.5%.Acid is molten
Property calcium vanadate grog through acidleach device (acidproof mechanical agitating tank and concentrator), calcium vanadate is extracted in aqueous phase and is formed containing vanadium
Leachate, finally utilizes containing vanadium leachate in precipitation-calciner plant (precipitation device is retort, and calciner plant is reverberatory furnace)
The precipitation of existing maturation-calcine technology produces vanadic anhydride, vanadium recovery 97%.
Comparative example 1 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 30%, vanadic anhydride 15%) in car-bottom furnace aoxidizing magnetic
Change calcination process, temperature 280 DEG C, oxygen concentration 2%, roasting time 3min, obtain magnetic calcining；At concentration equipment (magnetic separator)
In magnetic calcining is carried out magnetic separation process, obtain magnetic ferroferric oxide and rich vanadium slag, iron recovery 52%.By richness vanadium slag and chlorine
Change the rich by weight ratio vanadium slag of calcium (analytical pure, content 99.5%): calcium chloride=100:4 carries out dispensing batch mixing, and compound adds
Rotary hearth furnace carries out oxidation roasting with calcium compounds smelting, smelting temperature 1300 DEG C, roasting time 1.5h, obtains acid-soluble calcium vanadate grog.
Calcium vanadate, through acidleach device (acidproof mechanical agitating tank and concentrator), is extracted in aqueous phase and is formed by acid-soluble calcium vanadate grog
Containing vanadium leachate, containing vanadium leachate finally in precipitation-calciner plant (precipitation device is retort, and calciner plant is reverberatory furnace)
Precipitation-the calcine technology utilizing existing maturation produces vanadic anhydride, vanadium recovery 65%.
Comparative example 2 processes the method for vanadium slag
Carry out China's vanadium extraction steel mill vanadium slag (containing full ferrum 30%, vanadic anhydride 15%) in car-bottom furnace aoxidizing magnetic
Change calcination process, temperature 550 DEG C, oxygen concentration 2%, roasting time 25min, obtain magnetic calcining；In concentration equipment (magnetic separation
Machine) in magnetic calcining is carried out magnetic separation process, obtain magnetic ferroferric oxide and rich vanadium slag, iron recovery 61%.By richness vanadium slag
Vanadium slag rich by weight ratio with calcium chloride (analytical pure, content 99.5%): calcium chloride=100:35 carries out dispensing batch mixing, compound
Add rotary hearth furnace and carry out oxidation roasting with calcium compounds smelting, smelting temperature 1300 DEG C, roasting time 1.5h, obtain acid-soluble calcium vanadate ripe
Material.Calcium vanadate, through acidleach device (acidproof mechanical agitating tank and concentrator), is extracted in aqueous phase by acid-soluble calcium vanadate grog
Being formed containing vanadium leachate, containing vanadium leachate, finally at precipitation-calciner plant, (precipitation device is retort, and calciner plant is reflection
Stove) in utilize the precipitation of existing maturation-calcine technology to produce vanadic anhydride, vanadium recovery 83%.
Claims (10)
1. the method processing vanadium slag, it is characterised in that comprise the following steps:
(1) carry out vanadium slag aoxidizing magnetizing roast, obtain magnetic calcining；
(2) magnetic calcining is carried out magnetic separation, obtain ferroso-ferric oxide and rich vanadium slag；
(3) richness vanadium slag is mixed with calcium salt, carry out oxidation roasting with calcium compounds, obtain acid-soluble calcium vanadate grog；
(4) acid-soluble calcium vanadate grog is carried out acidleach, calcium vanadate is extracted aqueous phase, obtains containing vanadium leachate；
(5) vanadium leachate will be contained and carry out precipitation, calcining, and obtain vanadic anhydride, to obtain final product.
The most in accordance with the method for claim 1, it is characterised in that: the temperature of step (1) described oxidation magnetizing roast is 300-
500 DEG C, oxygen concentration by volume percentages is 0.5-2%, and the time is 5-20min.
The most in accordance with the method for claim 1, it is characterised in that: the described rich vanadium slag of step (3) with the weight ratio of calcium salt is
100:5-30.
4. according to the method described in claim 1 or 3, it is characterised in that: step (3) described calcium salt is selected from: calcium carbonate, oxidation
In calcium, calcium chloride, calcium bicarbonate or calcium hydroxide any one or more than one according to arbitrary proportion composition mixture.
The most in accordance with the method for claim 1, it is characterised in that: the temperature of step (3) described oxidation roasting with calcium compounds is 800-
1300 DEG C, the time is 1-2h.
The most in accordance with the method for claim 1, it is characterised in that: according to mass percent, containing of step (1) described vanadium slag
Iron >=20%；
Step (4) described calcium vanadate include in positive calcium vanadate, pyrovanadic acid calcium or metavanadic acid calcium any one or more than one by
Mixture according to arbitrary proportion composition.
7. implement the system of method described in claim 1 to 6 any one for one kind, it is characterised in that including: oxidation magnetizing roast
Device, concentration equipment, oxidation roasting with calcium compounds device, acid-leaching vanadium-extracted device and precipitation-calciner plant.
8. according to the system described in claim 7, it is characterised in that: described oxidation magnetizing roasting device is provided with vanadium slag entrance and magnetic
Property calcining outlet；
Described concentration equipment is provided with magnetic calcining entrance, ferroso-ferric oxide outlet and rich vanadium slag outlet；
Described oxidation roasting with calcium compounds device is provided with rich vanadium slag entrance, calcium salt entrance and the outlet of acid-soluble calcium vanadate grog；
Described acid-leaching vanadium-extracted device is provided with acid-soluble calcium vanadate grog entrance, containing vanadium leachate outlet and acid leaching residue outlet；
Described precipitation-calciner plant is provided with containing vanadium leachate entrance, vanadic anhydride outlet and tailings outlet.
9. according to the system described in claim 8, it is characterised in that: the outlet of the magnetic calcining of described oxidation magnetizing roasting device with
The magnetic calcining entrance of described concentration equipment is connected；
The rich vanadium slag outlet of described concentration equipment is connected with the rich vanadium slag entrance of described oxidation roasting with calcium compounds device；
The acid-soluble calcium vanadate grog outlet of described oxidation roasting with calcium compounds device and the acid-soluble vanadic acid of described acid-leaching vanadium-extracted device
Calcium clinker entrance is connected；
The outlet containing vanadium leachate of described acid-leaching vanadium-extracted device is connected with the entrance containing vanadium leachate of described precipitation-calciner plant.
10. according to the system described in claim 7, it is characterised in that: described oxidation magnetizing roasting device is selected from rotary hearth furnace, revolution
Any one in kiln, car-bottom furnace or tunnel cave；Described oxidation roasting with calcium compounds device is selected from rotary hearth furnace, rotary kiln, the roasting of many thoraxes
Any one in stove, car-bottom furnace or tunnel cave；Described concentration equipment is dry-type magnetic selection apparatus or wet magnetic separation equipment, preferably
For magnetic separator or magnetic separation tube；Described acid-leaching vanadium-extracted device includes acidproof mechanical agitating tank and concentrator；Described precipitation-calciner plant
For precipitation device and the linkage of calciner plant；Wherein said precipitation device is retort, and described calciner plant is reverberatory furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566949.7A CN106065436A (en) | 2016-07-18 | 2016-07-18 | A kind of method and system processing vanadium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566949.7A CN106065436A (en) | 2016-07-18 | 2016-07-18 | A kind of method and system processing vanadium slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106065436A true CN106065436A (en) | 2016-11-02 |
Family
ID=57207095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610566949.7A Pending CN106065436A (en) | 2016-07-18 | 2016-07-18 | A kind of method and system processing vanadium slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106065436A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756070A (en) * | 2017-03-24 | 2017-05-31 | 江苏省冶金设计院有限公司 | Process the method and system of vanadium-bearing slag of high calcium and high phosphor |
| CN106756120A (en) * | 2017-03-24 | 2017-05-31 | 江苏省冶金设计院有限公司 | Process the method and system of vanadium-bearing slag of high calcium and high phosphor |
| CN108672714A (en) * | 2018-04-24 | 2018-10-19 | 上海大学 | The method that alloy powder is directly prepared by cold rolling sludge |
| CN112359231A (en) * | 2020-10-27 | 2021-02-12 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by directly calcifying hot vanadium slag |
| CN113083848A (en) * | 2021-03-10 | 2021-07-09 | 深圳清研装备科技有限公司 | Sorting and recycling method for positive and negative electrode materials of waste lithium iron phosphate batteries |
| CN114349028A (en) * | 2021-11-29 | 2022-04-15 | 攀钢集团研究院有限公司 | Method for resource utilization of vanadium precipitation wastewater |
| CN115491506A (en) * | 2022-09-16 | 2022-12-20 | 四川顺应动力电池材料有限公司 | Method for efficiently separating vanadium, chromium and iron from vanadium slag |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121966A (en) * | 2007-06-19 | 2008-02-13 | 昆明理工大学 | A New Process for Recovery of Vanadium and Iron from High Calcium and High Iron Steel Slag |
| CA2680729A1 (en) * | 2008-09-25 | 2010-03-25 | Michel Gueguin | Thermal reduction process for the recovery of refractory metal oxides and the production of vanadium-rich iron alloys from mining residues or metallurgical wastes by-produced during the beneficiation and upgrading of titania slags |
| CN102477491A (en) * | 2010-11-30 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Method for extracting vanadium from vanadium slag |
| CN102732716A (en) * | 2012-06-15 | 2012-10-17 | 金川集团有限公司 | Method for producing magnetite by using fayalite slag |
| CN103924096A (en) * | 2014-04-28 | 2014-07-16 | 攀枝花学院 | Method for recycling vanadium-chromium resources |
| CN104109758A (en) * | 2014-07-21 | 2014-10-22 | 中国科学院过程工程研究所 | Clean process method for extracting vanadium, chromium and iron from vanadium slag step by step |
-
2016
- 2016-07-18 CN CN201610566949.7A patent/CN106065436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121966A (en) * | 2007-06-19 | 2008-02-13 | 昆明理工大学 | A New Process for Recovery of Vanadium and Iron from High Calcium and High Iron Steel Slag |
| CA2680729A1 (en) * | 2008-09-25 | 2010-03-25 | Michel Gueguin | Thermal reduction process for the recovery of refractory metal oxides and the production of vanadium-rich iron alloys from mining residues or metallurgical wastes by-produced during the beneficiation and upgrading of titania slags |
| CN102477491A (en) * | 2010-11-30 | 2012-05-30 | 攀钢集团钢铁钒钛股份有限公司 | Method for extracting vanadium from vanadium slag |
| CN102732716A (en) * | 2012-06-15 | 2012-10-17 | 金川集团有限公司 | Method for producing magnetite by using fayalite slag |
| CN103924096A (en) * | 2014-04-28 | 2014-07-16 | 攀枝花学院 | Method for recycling vanadium-chromium resources |
| CN104109758A (en) * | 2014-07-21 | 2014-10-22 | 中国科学院过程工程研究所 | Clean process method for extracting vanadium, chromium and iron from vanadium slag step by step |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756070A (en) * | 2017-03-24 | 2017-05-31 | 江苏省冶金设计院有限公司 | Process the method and system of vanadium-bearing slag of high calcium and high phosphor |
| CN106756120A (en) * | 2017-03-24 | 2017-05-31 | 江苏省冶金设计院有限公司 | Process the method and system of vanadium-bearing slag of high calcium and high phosphor |
| CN108672714A (en) * | 2018-04-24 | 2018-10-19 | 上海大学 | The method that alloy powder is directly prepared by cold rolling sludge |
| CN112359231A (en) * | 2020-10-27 | 2021-02-12 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for extracting vanadium by directly calcifying hot vanadium slag |
| CN113083848A (en) * | 2021-03-10 | 2021-07-09 | 深圳清研装备科技有限公司 | Sorting and recycling method for positive and negative electrode materials of waste lithium iron phosphate batteries |
| CN114349028A (en) * | 2021-11-29 | 2022-04-15 | 攀钢集团研究院有限公司 | Method for resource utilization of vanadium precipitation wastewater |
| CN115491506A (en) * | 2022-09-16 | 2022-12-20 | 四川顺应动力电池材料有限公司 | Method for efficiently separating vanadium, chromium and iron from vanadium slag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106065435A (en) | A kind of method and system processing vanadium slag | |
| Wang et al. | A review on vanadium extraction techniques from major vanadium-containing resources | |
| CN106065436A (en) | A kind of method and system processing vanadium slag | |
| Tao et al. | Desilication from titanium–vanadium slag by alkaline leaching | |
| CN206052110U (en) | A kind of system for processing vanadium slag | |
| CN102251122B (en) | Silver-extracting process of lead-silver slag acidification roasting leaching | |
| CN103911514B (en) | The recovery and treatment method of scrap hard alloy grinding material | |
| CN107586948A (en) | A kind of vanadium slag depth extraction vanadium method | |
| CN107090551B (en) | A kind of method for directly extracting vanadium from vanadium titanomagnetite | |
| CN109913660A (en) | A method of rich vanadium richness iron charge is prepared using v-bearing steel slag | |
| Gao et al. | A comparative study of extracting vanadium from vanadium titano-magnetite ores: calcium salt roasting vs sodium salt roasting | |
| CN105907984A (en) | Method for comprehensively utilizing vanadium slag | |
| CN106086431A (en) | Vanadium slag is carried out method and the application thereof of integrated treatment | |
| CN105925813A (en) | Vanadium slag comprehensive treatment method and application thereof | |
| CN106086430A (en) | The method of comprehensive utilization vanadium slag | |
| CN101509073A (en) | Solvent extraction of ferronickel powder and waste liquor processing method | |
| CN106884089A (en) | Method for recovering vanadium from non-blast furnace titanium slag | |
| CN110055371A (en) | The method that molten iron production vanadium slag containing sodium directly leaches vanadium extraction | |
| CN103343242B (en) | Method for interactively roasting bismuth sulfide ore and pyrolusite to extract bismuth and co-produce manganese sulfate | |
| CN101906538A (en) | Method for extracting nickel and molybdenum from nickel and molybdenum paragenetic ore by using low-concentration combined acid and oxidant | |
| CN105110300B (en) | The method that a kind of compound manganese ore of Containing Sulfur manganese extracts manganese and sulphur | |
| CN102912124B (en) | Method for recovering nickel, cobalt, manganese and iron by hydrochloric acid leaching of nickel oxide ore | |
| CN105347399B (en) | A kind of method that ammonium sulfate Roasting Decomposition chromite leaches chromium | |
| CN110106307A (en) | Using the extraction vanadium method of sodium salt processing vanadium-bearing hot metal | |
| CN111440908B (en) | A method for converting titanium components in titanium-containing blast furnace slag into ilmenite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161102 |