CN106755997A - A kind of method of nickel-containing ore comprehensive utilization - Google Patents
A kind of method of nickel-containing ore comprehensive utilization Download PDFInfo
- Publication number
- CN106755997A CN106755997A CN201611097203.2A CN201611097203A CN106755997A CN 106755997 A CN106755997 A CN 106755997A CN 201611097203 A CN201611097203 A CN 201611097203A CN 106755997 A CN106755997 A CN 106755997A
- Authority
- CN
- China
- Prior art keywords
- nickel
- gained
- containing ore
- sulfuric acid
- solid
- Prior art date
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- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 181
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 52
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 80
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000011777 magnesium Substances 0.000 claims abstract description 28
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 28
- 239000006004 Quartz sand Substances 0.000 claims abstract description 27
- 239000004576 sand Substances 0.000 claims abstract description 27
- 238000002386 leaching Methods 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims description 54
- 239000007788 liquid Substances 0.000 claims description 25
- 239000000047 product Substances 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000000706 filtrate Substances 0.000 claims description 15
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 12
- 206010016256 fatigue Diseases 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 8
- ZGBSOTLWHZQNLH-UHFFFAOYSA-N [Mg].S(O)(O)(=O)=O Chemical compound [Mg].S(O)(O)(=O)=O ZGBSOTLWHZQNLH-UHFFFAOYSA-N 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 7
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 claims description 7
- 239000006227 byproduct Substances 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- -1 ferrous metals Chemical class 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 238000010334 sieve classification Methods 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 5
- 229910052564 epsomite Inorganic materials 0.000 claims description 4
- 229910052928 kieserite Inorganic materials 0.000 claims description 4
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 12
- 239000002253 acid Substances 0.000 abstract description 10
- 238000005272 metallurgy Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 6
- 229910052710 silicon Inorganic materials 0.000 abstract description 6
- 239000010703 silicon Substances 0.000 abstract description 6
- 150000003839 salts Chemical class 0.000 abstract description 5
- 238000012356 Product development Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 9
- 239000010941 cobalt Substances 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 9
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 9
- 239000002893 slag Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 7
- 239000000377 silicon dioxide Substances 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 239000011651 chromium Substances 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 4
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 235000010215 titanium dioxide Nutrition 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000010669 acid-base reaction Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 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 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010670 acid alkali reaction Methods 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- JEZHBSJTXKKFMV-UHFFFAOYSA-N calcium nickel Chemical compound [Ca].[Ni] JEZHBSJTXKKFMV-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
- C22B23/043—Sulfurated acids or salts thereof
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
- C22B23/0461—Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
-
- 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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
It is of the invention to disclose a kind of method of nickel-containing ore comprehensive utilization, through ore pretreatment, directly sulfuric acid leaching, heavy nickel or the heavy nickel of removal of impurities, magnesium, recovery quartz sand are reclaimed, finally realize that nickel-containing ore is comprehensively utilized.The full element that the technology of the present invention is conceived to nickel-containing ore resource is utilized, silicon in nickel-containing ore, magnesium, iron, the full element of nickel are recycled, put forth effort on supporting with the circulation of non-ferrous metal metallurgy enterprise, on the one hand this project is dissolved, and the quartz sand of this project construction returns non-ferrous metal metallurgy enterprise so as to realize the purpose of resource circulation utilization again simultaneously for the sulfuric acid of non-ferrous metal metallurgy enterprise.The present invention form match somebody with somebody from ore pretreatment, Machine-made Sand level, the product development of series of quartz sand, salt is reclaimed and water process, nickel, iron, magnesium are reclaimed, the series such as system acid, water balance.Resource utilization of the invention is high, low cost, small investment, without three industrial wastes discharge, not generation environment pollution；Whole technique is brief, cleaning, environmentally friendly.
Description
Technical field
The present invention relates to a kind of method of nickel-containing ore comprehensive utilization, belong to metallurgical technology field.
Background technology
At present to nickel-containing ore（Such as lateritic nickel ore, garnierite）Handling process mainly have two kinds：（One）Wet method.Wet method
It is divided into sulfuric acid process and ammonia process again, the former mainly makees leaching agent with sulfuric acid, and the latter's ammonia or ammonia salt make leaching agent.Wherein ammonia process because
Environmental issue is seldom used；Sulfuric acid process is difficult to recycle with generation leachate and solid after sulfuric acid leaching, solid, the heap after slag
Deposit, this part slag is dangerous solid waste because of nickeliferous compound, store up pollution environment, and leachate electrolysis production after extraction is electrolysed
Nickel, it containing heavy metal contaminants is also dangerous solid waste to be electrolysed in the solid slag for producing, and can cause environmental pollution.Therefore, sulfuric acid process is thrown
Provide low big, high cost, leaching rate, water expansion, magnesium can not be opened a way, the metallurgical slag of particularly a large amount of iron content calcium nickel cannot be utilized, ring
Packing pressure is big, has enterprise's sulfuric acid process treatment lateritic nickel ore because environmental protection was once suspended operations for consolidation.（Two）Pyrogenic process.Pyrogenic process is divided into ferronickel again
Method and matte smelting method.It is high to raw ore requirement but the method is only suitable for magnesia ore deposit, typically require head grade more than 1.5% even
More than 2%, applicable scope of resource is very small, and investment is big, energy consumption is very high, and environmental pollution be particularly metallurgical slag greatly cannot profit
With environmental protection pressure is big.
Sulfuric acid supporting with the copper smelting plant at present enterprise that dissolves is titanium powder plant or phosphorizing treatment, but both techniques have
The critical defects such as long flow path, environmental pollution.China's titanium dioxide industry production capacity rapid growth, but the ring present in rapid growth
Border pollution problem and potential environmental risk can not be ignored really.Specifically, it is mainly manifested in following aspect.One is that unit is produced
Product blowdown flow rate is big, and resource, energy resource consumption are high.Using traditional Titanium White Production By Sulfuric Acid Process, titanium dioxide consumption per ton is produced fresh
100~150 tons of water, about 1.6 tons of comprehensive energy consumption mark coals, while about produce 8 tons of the Waste Sulfuric Acid of concentration 20%, 100 tons of acid waste water,
8 tons of waste residue, and the ten thousand stere of waste gas 2.5 containing sulfur dioxide, acid mist and dust.Two is that factory's point is more, small scale, and heavily contaminated is produced
Energy proportion is excessive.Three is little disposal of waste gas, water and industrial residue difficulty, but control expense is high.Production phosphate fertilizer during produce hydrogen fluoride,
Ocratation, fluorine-containing dust, phosphoric acid mist, ammonia and sulfur dioxide etc. pollute environment, wherein larger with fluorine-containing hazard of contaminant.Typically
In the case of, one ton of chemical fertilizer, about 40 tons of effluent, 2000 cubes of waste gas, dust 50mg are often produced, and substantial amounts of ardealite is even more right
The harm that environmental protection is caused is bigger.
Demand growth with rapid development of economy, particularly Asia-Pacific market to nickel is very rapid, but accounts for the money of the whole world 70%
The lateritic nickel ore of source reserves but only contribute to 30% yield.Its reason is just the absence of the scope of application wide, reduced investment, low cost, right
Environment-friendly maximization production technology.
However, non-ferrous metal metallurgy enterprise by-product sulfuric acid amount is big, it is mishandling to there is the hidden danger such as social safety, environmental protection, because
The maximization production technology of this research nickel-containing ore comprehensive utilization has important practical significance.
The content of the invention
To overcome above-mentioned the deficiencies in the prior art, the present invention to provide a kind of method of nickel-containing ore comprehensive utilization, both solved
Prior art investment is big, the problem that environmental pollution is big, the quantity of slag is big, and can realize sulfuric acid and quartz sand with non-ferrous metal metallurgy enterprise
Recycle.
The present invention is realized by following technical proposal：A kind of method of nickel-containing ore comprehensive utilization, by following each step：
（1）Ore is pre-processed：Raw material nickel-containing ore is crushed, the ore in sand form that granularity is 0.63~5mm is sized to；
（2）Sulfuric acid leaching：By step（1）Gained ore in sand form adds water and sizes mixing to pulp density in 20~50wt%, adds sulfuric acid solution
It is 2~70% to mix to acidity, carries out neutralization leaching, then carries out separation of solid and liquid, obtains leachate and solid；The step makes to contain
The metals such as nickel, cobalt, manganese, iron, aluminium, chromium in nickel ores（Hydroxide, oxide）Entered by adding sulfuric acid to form sulfate
In leachate；And the silica in nickel-containing ore is then not involved in acid-base reaction and is intactly retained in solids for producing stone
Sand；
（3）Directly sink nickel：In step（2）Alkali to pH value is added to be 8~11 in gained leachate, then through being filtrated to get solid and filter
Liquid, gained solid is the nickel hydroxide of iron content；In the nickel hydroxide of the iron content nickel content be 17~30%, cobalt content be 0.1~
2%, iron content is 10~20%, and manganese content is 0.5~5%, and aluminium content is 2~8%；The nickel hydroxide of the iron content can be used as stainless steel
Factory or the raw material of extraordinary steel mill；Or, in step（2）Add sulfide in gained leachate（Such as hydrogen sulfide, vulcanized sodium）To pH value
It is 3.2~4.2, through being filtrated to get solid and filtrate, gained solid is nickel sulfide；The nickel content of gained nickel sulfide be 2~
35%, cobalt content is 0.1~2%, and iron content is 1~5%；The Containing Sulfur nickel can be used as the raw material of electrolytic nickel factory；
Or, nickel is sunk in removal of impurities：It is 0.05~0.1 by the mass ratio of leachate and hydrogen peroxide:1, in step（2）In gained leachate
After adding hydrogen peroxide, warming while stirring is to 80 DEG C, then it is 3.2~4.2 that milk of lime to pH value is added dropwise, then through separation of solid and liquid,
The removal such as impure iron, calcium, manganese, chromium, cadmium, aluminium, silicon in solids, contains magnesium and nickel, in gained in gained solid in gained liquid
It is 8~11 that NaOH to pH value is added in liquid, and solids and filtrate are obtained after refiltering, and gained solids is hydroxide
Nickel；The purity of gained nickel hydroxide reaches more than 95%；Gained nickel hydroxide can both produce energy storage material and also can as production not
The raw material of rust steel；
（4）Reclaim magnesium：By step（3）Gained filtrate is obtained sulfuric acid magnesium products through evaporative crystallization, while using distilled water as technique
Backwater circulation is utilized；The content of epsom salt is more than 96% in gained sulfuric acid magnesium products, and the step effectively can turn a large amount of waste water
It is changed into distilled water return to recycle；
Or, by step（3）It is 11~15 that gained filtrate adds alkali regulation pH value, then through being filtrated to get solid and liquid, gained
Solid is one or more in the hydroxide of magnesium, the carbonate of magnesium, the bicarbonate of magnesium；Gained liquid is returned as technique
Water circulation use；
（5）Reclaim quartz sand：Step（2）Gained solid step（4）After gained technique backwater washed-out sand to neutrality, sieve classification is obtained
To quartz sand product.
The step（1）Raw material nickel-containing ore be the garnierite being separated into by lateritic nickel ore.
The step（1）It is broken be when the water content of nickel-containing ore is less than 15% using dry broken, when containing for nickel-containing ore
Broken using wet when water is more than 15%.
The step（2）Neutralization to leach mixed using one or more modes in conventional dump leaching, dip, leaching
With.
The dump leaching it is time-consuming be 15~300 days, dip it is time-consuming be 10~1000 hours, the time-consuming of leaching be 1
~5 hours.
The step（2）Sulfuric acid solution come from non-ferrous metal（Copper, nickel, lead, zinc）The byproduct sulfuric acid solution of smeltery.
The step（2）Sulfuric acid solution substituted by hydrochloric acid solution and/or hydrofluoric acid solution, or salt is added in sulfuric acid solution
Acid solution and/or hydrofluoric acid solution.Wherein, the acidity of dump leaching is the acid that the acidity of 2~12%, leaching is 5~50%, dip
Spend is 20~70%.
The step（3）Or step（4）Alkali be NaOH.
The step（4）Sulfuric acid magnesium products include MgSO4·7H2O、MgSO4·H2O and anhydrous MgSO4。
The step（5）Washed-out sand after produce water outlet be back to step（2）For sizing mixing, the closed cycle profit of water is realized
With.
The step（5）Quartz sand product include porous silica, glass sand, metallurgical quartz sand and/or build
Build and use sand.
In above-mentioned technical process, evaporative crystallization can be substituted by multiple-effect evaporation or heat pump techniques；Separation of solid and liquid can be with dense
One kind in machine, Hhigh-efficient thickener, flame filter press, vacuum filter, band filter, filter press, countercurrent washing equipment or
It is several mixed；Washed-out sand can use sand washer and/or screening machine.
Advantage and effect that the present invention possesses：
Hydroxide in nickel-containing ore, oxide are used to neutralize acid by the present invention, produce salt and water, salt substep to return after neutralizing acid
Magnesium and nickel are received, gained water is then recycled as process water after reclaiming magnesium, and the silica in nickel-containing ore is then not involved in acid
Alkali reaction intactly remained for producing building sand, magnesium, silicon, nickel in such nickel-containing ore formed respectively magnesium salts/
Magnesium hydroxide, Machine-made Sand（Brick）With the class product of nickel salt/nickel hydroxide three and realize nickel-containing ore complete resource utilize, entirely
Process does not produce industrial wastewater, waste residue, waste gas, complete environmental protection.The non-ferrous metals smelting works that dissolve by-product sulfuric acid simultaneously,
The quartz sand of present invention process production returns to non-ferrous metals smelting works again, so as to realize the purpose that social resources are recycled.
The full element that the technology of the present invention is conceived to nickel-containing ore resource is utilized, and the silicon in nickel-containing ore, magnesium, iron, nickel is complete
Element is recycled, and puts forth effort on supporting with the circulation of non-ferrous metal metallurgy enterprise, and on the one hand this project is dissolved non-ferrous metal metallurgy
The quartz sand of the sulfuric acid of enterprise this project construction simultaneously returns non-ferrous metal metallurgy enterprise so as to realize resource circulation utilization again
Purpose.The present invention form from ore pretreatment, Machine-made Sand level match somebody with somebody, the product development of series of quartz sand, salt reclaim and water process,
Nickel, iron, magnesium are reclaimed, the series such as system acid, water balance, these unique and rich creativeness.
Resource utilization of the invention is high, low cost, small investment, without three industrial wastes discharge, not generation environment pollution；Entirely
Technique is brief, cleaning, environmentally friendly.The present invention is to comprehensive utilization of resources, Strategy of Circular Economy and environmentally friendly sustainable development tool
It is of great importance.
Specific embodiment
Below by embodiment, the present invention will be further described.
Embodiment 1
Raw material is lateritic nickel ore, and lateritic nickel ore is separated into the limonite of nickelic high ferro and the garnierite of high silicon and low iron, gained
Limonite is directly outer to be sold, and gained garnierite is used as nickel-containing ore, i.e. serpentine（Ni,Mg)3Si4O10(OH)8.Lateritic nickel ore
Specific lock out operation is as follows：
By particle diameter more than 40mm lateritic nickel ore enter Three stage crushing with single closed circuit stage flow, be made afterwards after crushing and screening+0.5mm~
The finished product and -0.5mm ore pulps of 10mm.Lateritic nickel ore and ore pulp of the particle diameter less than 40mm be divided into after trough washery -0.5mm ore pulps ,+
0.5mm~10mm ores in sand form and+10mm ores ,+10mm ores enter closed circuit crushing flow, and it is dense that -0.5mm ore pulps enter concentrator
Contracting, it is nickelic high ferro irony ore deposit to concentrate, and+0.5mm~10mm ores in sand form are nickel-containing ore（Garnierite）.Its composition such as table 1 below：
The lateritic nickel ore of table 1 separates the grade of front and rear each element
（1）Ore is pre-processed：Above-mentioned gained nickel-containing ore is crushed, the ore in sand form that granularity is 0.63~5mm is sized to；Wherein
Broken is when the water content of nickel-containing ore is less than 15% using dry broken, when the water content of nickel-containing ore is more than 15% using wet
It is broken；
（2）Sulfuric acid leaching：By step（1）Gained ore in sand form adds water and sizes mixing to pulp density in 40wt%, adds smeltery's byproduct
It is 45% that sulfuric acid solution mixes to acidity, leaches neutralize using convention stir and leaches 1~5 hour, then carries out solid-liquid point
From obtaining leachate and solid；Nickeliferous 0.13% in gained solid, containing cobalt 0.0099%, nickeliferous 4.56g/L, iron content in leachate
4.07g/L, the leaching rate of nickel is that the leaching rate of 87.73%, cobalt is 93.81%；
（3）Nickel is sunk in removal of impurities：It is 0.08 by the mass ratio of leachate and hydrogen peroxide:1, in step（2）Added in gained leachate double
After oxygen water, warming while stirring is to 80 DEG C, then it is 3.2~4.2 that milk of lime to pH value is added dropwise, and then through separation of solid and liquid, separates institute
Liquid except iron rate 96.31%；Composition in separating obtained liquid is shown in Table 2：
The composition g/L of the separating obtained liquid of table 2
It is 8~11 that NaOH to pH value is added in gained liquid, and stabilization reaction 1 hour obtains solids and filter after refiltering
Liquid, gained solids is nickel hydroxide；Nickel content is 0.32g/L in filtrate, and nickel rate of deposition is 92.28%, gained nickel hydroxide
Purity reach 96%；
（4）Reclaim magnesium：By step（3）Gained filtrate（47g/L containing magnesium ion concentration）Sulfuric acid magnesium products are obtained through evaporative crystallization（Bag
Include MgSO4·7H2O、MgSO4·H2O and anhydrous MgSO4）, while being utilized distilled water as technique backwater circulation；Wherein, steam
0.95 ton/ton sulfuric acid magnesium products of consumption, 165 KWhs/ton of sulfuric acid magnesium products of electric consumption；
（5）Reclaim quartz sand：Step（2）Gained solid step（4）After gained technique backwater washed-out sand to neutrality, sieve classification is obtained
To quartz sand product（Including porous silica, glass sand, metallurgical quartz sand and/or building sand）；Produced after washed-out sand
Water outlet be back to step（2）For sizing mixing.
Embodiment 2
（1）Ore is pre-processed：Raw material nickel-containing ore is crushed, the ore in sand form that granularity is 0.63~5mm is sized to；
（2）Sulfuric acid leaching：By step（1）Gained ore in sand form adds water and sizes mixing to pulp density in 20wt%, adds hydrochloric acid solution and hydrogen
It is 2% that fluorspar acid solution mixes to acidity, carries out in dump leaching and leaches 15~300 days, then carries out separation of solid and liquid, obtains leachate
And solid；The step makes the metals such as nickel, cobalt, manganese, iron, aluminium, the chromium in nickel-containing ore（Hydroxide, oxide）By adding sulphur
Acid forms sulfate and enters in leachate；And the silica in nickel-containing ore is then not involved in acid-base reaction and is intactly retained in
It is used to produce quartz sand in solid；
（3）Directly sink nickel：In step（2）It is 8~11 that sodium oxide molybdena to pH value is hydrogenated with gained leachate, then through being filtrated to get solid
And filtrate, gained solid is the nickel hydroxide of iron content；Nickel content is 17~30% in the nickel hydroxide of the iron content, and cobalt content is
0.1~2%, iron content is 10~20%, and manganese content is 0.5~5%, and aluminium content is 2~8%；The nickel hydroxide of the iron content can conduct
Stainless Steel Plant or the raw material of extraordinary steel mill；
（4）Reclaim magnesium：By step（3）It is 11~15 that gained filtrate adds alkali regulation pH value, then through being filtrated to get solid and liquid,
Gained solid is one or more in the hydroxide of magnesium, the carbonate of magnesium, the bicarbonate of magnesium；Gained liquid is used as work
Skill backwater circulation is utilized；
（5）Reclaim quartz sand：Step（2）Gained solid step（4）After gained technique backwater washed-out sand to neutrality, sieve classification is obtained
To quartz sand product（Including porous silica, glass sand, metallurgical quartz sand and/or building sand）；Produced after washed-out sand
Water outlet be back to step（2）For sizing mixing, realize that the closed cycle of water is utilized.
Embodiment 3
（1）Ore is pre-processed：Raw material nickel-containing ore is crushed, the ore in sand form that granularity is 0.63~5mm is sized to；
（2）Sulfuric acid leaching：By step（1）Gained ore in sand form adds water and sizes mixing to pulp density in 50wt%, adds non-ferrous metal metallurgy
It is 70% that the byproduct sulfuric acid solution and hydrochloric acid solution solution of factory mix to acidity, carries out in dip and to leach 10~1000 small
When, separation of solid and liquid is then carried out, obtain leachate and solid；The step makes nickel, cobalt, manganese, iron, aluminium, chromium in nickel-containing ore etc.
Metal（Hydroxide, oxide）Entered in leachate by adding sulfuric acid to form sulfate；And the titanium dioxide in nickel-containing ore
Silicon is then not involved in acid-base reaction and is intactly retained in solids for producing quartz sand；
（3）Directly sink nickel：In step（2）Hydrogen sulfide or vulcanized sodium to pH value is added to be 3.2~4.2 in gained leachate, through filtering
Solid and filtrate are obtained, gained solid is nickel sulfide；The nickel content of gained nickel sulfide is 2~35%, and cobalt content is 0.1~2%,
Iron content is 1~5%；The Containing Sulfur nickel can be used as the raw material of electrolytic nickel factory；
（4）Reclaim magnesium：By step（3）Gained filtrate is obtained sulfuric acid magnesium products through evaporative crystallization（MgSO4·7H2O、MgSO4·H2O
And anhydrous MgSO4）, while being utilized distilled water as technique backwater circulation；Epsom salt contains in gained sulfuric acid magnesium products
Amount is more than 96%, and a large amount of waste water effectively can be changed into distilled water return and recycled by the step；
（5）Reclaim quartz sand：Step（2）Gained solid step（4）After gained technique backwater washed-out sand to neutrality, sieve classification is obtained
To quartz sand product（Including porous silica, glass sand, metallurgical quartz sand and/or building sand）；Produced after washed-out sand
Water outlet be back to step（2）For sizing mixing, realize that the closed cycle of water is utilized.
Comparative example 1：With above-described embodiment 1, step is only omitted（1）Operation.Result cannot obtain quartz sand product, finally still can
Form a large amount of solid slags to stack, and be not used.
Comparative example 2：With above-described embodiment 1, step is only omitted（3）Operation.As a result the element such as iron can not turn into stainless steel
Factory or the raw material of extraordinary steel mill, and stacked as solid slag, it is difficult to recycle.
Comparative example 3：With above-described embodiment 1, step is only omitted（4）Operation.If routinely adding lime treatment filtrate, knot
Fruit magnesium is stacked into solid slag, it is difficult to recycle.
Claims (10)
1. a kind of method that nickel-containing ore is comprehensively utilized, it is characterised in that by following each step：
（1）Ore is pre-processed：Raw material nickel-containing ore is crushed, the ore in sand form that granularity is 0.63~5mm is sized to；
（2）Sulfuric acid leaching：By step（1）Gained ore in sand form adds water and sizes mixing to pulp density in 20~50wt%, adds sulfuric acid solution
It is 2~70% to mix to acidity, carries out neutralization leaching, then carries out separation of solid and liquid, obtains leachate and solid；
（3）Directly sink nickel：In step（2）Alkali to pH value is added to be 8~11 in gained leachate, then through being filtrated to get solid and filter
Liquid, gained solid is the nickel hydroxide of iron content；Or, in step（2）In gained leachate plus sulfide to pH value be 3.2~
4.2, through being filtrated to get solid and filtrate, gained solid is nickel sulfide；
Or, nickel is sunk in removal of impurities：It is 0.05~0.1 by the mass ratio of leachate and hydrogen peroxide:1, in step（2）In gained leachate
After adding hydrogen peroxide, warming while stirring is to 80 DEG C, then it is 3.2~4.2 that milk of lime to pH value is added dropwise, then through separation of solid and liquid,
It is 8~11 that NaOH to pH value is added in gained liquid, and solids and filtrate are obtained after refiltering, and gained solids is
Nickel hydroxide；
（4）Reclaim magnesium：By step（3）Gained filtrate is obtained sulfuric acid magnesium products through evaporative crystallization, while using distilled water as technique
Backwater circulation is utilized；
Or, by step（3）It is 11~15 that gained filtrate adds alkali regulation pH value, then through being filtrated to get solid and liquid, gained
Solid is one or more in the hydroxide of magnesium, the carbonate of magnesium, the bicarbonate of magnesium；Gained liquid is returned as technique
Water circulation use；
（5）Reclaim quartz sand：Step（2）Gained solid step（4）After gained technique backwater washed-out sand to neutrality, sieve classification is obtained
To quartz sand product.
2. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（1）Raw material
Nickel-containing ore is the garnierite being separated into by lateritic nickel ore.
3. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（1）It is broken
It is when the water content of nickel-containing ore is less than 15% using dry broken, when the water content of nickel-containing ore is more than 15% using wet broken.
4. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（2）Neutralization
Leaching is used with using one or more modes in conventional dump leaching, dip, leaching.
5. the method that nickel-containing ore according to claim 4 is comprehensively utilized, it is characterised in that：The time-consuming of the dump leaching is 15
~300 days, dip it is time-consuming be 10~1000 hours, the time-consuming of leaching be 1~5 hour.
6. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（2）Sulfuric acid
Byproduct sulfuric acid solution of the solution from non-ferrous metals smelting works.
7. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（2）Sulfuric acid
Solution is substituted by hydrochloric acid solution and/or hydrofluoric acid solution, or hydrochloric acid solution and/or hydrofluoric acid solution are added in sulfuric acid solution.
8. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（3）Or step
（4）Alkali be NaOH.
9. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（5）Washed-out sand
The water outlet for producing afterwards is back to step（2）For sizing mixing.
10. the method that nickel-containing ore according to claim 1 is comprehensively utilized, it is characterised in that：The step（4）Sulfuric acid
Magnesium products include MgSO4·7H2O、MgSO4·H2O and anhydrous MgSO4；The step（5）Quartz sand product include porous dioxy
SiClx, glass sand, metallurgical quartz sand and/or building sand.
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| CN110629025A (en) * | 2019-09-10 | 2019-12-31 | 荆门德威格林美钨资源循环利用有限公司 | Method for efficiently leaching cobalt and nickel from slag after tungsten extraction |
| CN111118285A (en) * | 2020-01-07 | 2020-05-08 | 张响 | Method for leaching valuable metals from laterite-nickel ore by sulfuric acid under normal pressure |
| CN111549219A (en) * | 2020-04-15 | 2020-08-18 | 广西赛可昱新材料科技有限公司 | Method for comprehensively treating and recycling valuable substances from nickel ore |
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