JP2014504677A - 鉱石処理の改良された方法 - Google Patents
鉱石処理の改良された方法 Download PDFInfo
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- JP2014504677A JP2014504677A JP2013550707A JP2013550707A JP2014504677A JP 2014504677 A JP2014504677 A JP 2014504677A JP 2013550707 A JP2013550707 A JP 2013550707A JP 2013550707 A JP2013550707 A JP 2013550707A JP 2014504677 A JP2014504677 A JP 2014504677A
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- cobalt
- nickel
- oxidant
- ore
- leaching solution
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 76
- 238000012545 processing Methods 0.000 title claims abstract description 35
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 243
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 133
- 239000010941 cobalt Substances 0.000 claims abstract description 133
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 130
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 121
- 239000007800 oxidant agent Substances 0.000 claims abstract description 74
- 238000002386 leaching Methods 0.000 claims abstract description 61
- 230000001590 oxidative effect Effects 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 239000007790 solid phase Substances 0.000 claims abstract description 30
- 230000002378 acidificating effect Effects 0.000 claims abstract description 14
- 239000000243 solution Substances 0.000 claims description 84
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 45
- 229910052748 manganese Inorganic materials 0.000 claims description 45
- 239000011572 manganese Substances 0.000 claims description 45
- 239000007787 solid Substances 0.000 claims description 41
- 239000002244 precipitate Substances 0.000 claims description 24
- 230000003647 oxidation Effects 0.000 claims description 21
- 238000007254 oxidation reaction Methods 0.000 claims description 21
- UUCGKVQSSPTLOY-UHFFFAOYSA-J cobalt(2+);nickel(2+);tetrahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[Co+2].[Ni+2] UUCGKVQSSPTLOY-UHFFFAOYSA-J 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003929 acidic solution Substances 0.000 claims description 10
- 238000005363 electrowinning Methods 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- 239000011701 zinc Substances 0.000 claims description 10
- 229910052725 zinc Inorganic materials 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 6
- 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 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- JRKICGRDRMAZLK-UHFFFAOYSA-L peroxydisulfate Chemical compound [O-]S(=O)(=O)OOS([O-])(=O)=O JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- JAWGVVJVYSANRY-UHFFFAOYSA-N cobalt(3+) Chemical compound [Co+3] JAWGVVJVYSANRY-UHFFFAOYSA-N 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 claims description 3
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 3
- 150000002978 peroxides Chemical class 0.000 claims description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 claims description 2
- -1 permanganate Chemical compound 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000012071 phase Substances 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 15
- 238000012360 testing method Methods 0.000 description 64
- 238000000926 separation method Methods 0.000 description 24
- 238000007792 addition Methods 0.000 description 16
- 239000000543 intermediate Substances 0.000 description 14
- 239000012535 impurity Substances 0.000 description 13
- 238000004090 dissolution Methods 0.000 description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000013459 approach Methods 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 7
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 6
- JYLNVJYYQQXNEK-UHFFFAOYSA-N 3-amino-2-(4-chlorophenyl)-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(CN)C1=CC=C(Cl)C=C1 JYLNVJYYQQXNEK-UHFFFAOYSA-N 0.000 description 5
- 150000007513 acids Chemical class 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 5
- 239000012286 potassium permanganate Substances 0.000 description 5
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910001710 laterite Inorganic materials 0.000 description 4
- 239000011504 laterite Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000013067 intermediate product Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group 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
- 235000019738 Limestone Nutrition 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- SPAGIJMPHSUYSE-UHFFFAOYSA-N Magnesium peroxide Chemical compound [Mg+2].[O-][O-] SPAGIJMPHSUYSE-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 150000001869 cobalt compounds Chemical class 0.000 description 2
- INPLXZPZQSLHBR-UHFFFAOYSA-N cobalt(2+);sulfide Chemical compound [S-2].[Co+2] INPLXZPZQSLHBR-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000011090 industrial biotechnology method and process Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229960004995 magnesium peroxide Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 150000002816 nickel compounds Chemical class 0.000 description 2
- LKNLEKUNTUVOML-UHFFFAOYSA-L nickel(2+);sulfate;hydrate Chemical compound O.[Ni+2].[O-]S([O-])(=O)=O LKNLEKUNTUVOML-UHFFFAOYSA-L 0.000 description 2
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 2
- 238000010979 pH adjustment Methods 0.000 description 2
- 229910001487 potassium perchlorate Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 2
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910021503 Cobalt(II) hydroxide Inorganic materials 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000080590 Niso Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical class O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- QXZUUHYBWMWJHK-UHFFFAOYSA-N [Co].[Ni] Chemical compound [Co].[Ni] QXZUUHYBWMWJHK-UHFFFAOYSA-N 0.000 description 1
- HSSJULAPNNGXFW-UHFFFAOYSA-N [Co].[Zn] Chemical compound [Co].[Zn] HSSJULAPNNGXFW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- RYTYSMSQNNBZDP-UHFFFAOYSA-N cobalt copper Chemical compound [Co].[Cu] RYTYSMSQNNBZDP-UHFFFAOYSA-N 0.000 description 1
- MZZUATUOLXMCEY-UHFFFAOYSA-N cobalt manganese Chemical compound [Mn].[Co] MZZUATUOLXMCEY-UHFFFAOYSA-N 0.000 description 1
- ASKVAEGIVYSGNY-UHFFFAOYSA-L cobalt(ii) hydroxide Chemical compound [OH-].[OH-].[Co+2] ASKVAEGIVYSGNY-UHFFFAOYSA-L 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 235000012245 magnesium oxide Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003278 mimic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 1
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 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
- 241000894007 species Species 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Images
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
- C22B23/00—Obtaining nickel or cobalt
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
-
- 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide
-
- 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
-
- 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
- C22B23/0476—Separation of nickel from cobalt
-
- 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
- C22B23/0476—Separation of nickel from cobalt
- C22B23/0484—Separation of nickel from cobalt in acidic type solutions
-
- 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
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
【選択図】図1
Description
(a)混合ニッケル−コバルト水酸化物沈殿物を、酸化剤を含む酸性浸出溶液と接触させる工程であって、酸化剤は、ニッケルの大部分を溶解しながら、コバルトの大部分を固相中に安定化させるのに十分な量で存在する、工程と、
(b)溶解したニッケルを含有する浸出溶液から固体コバルト濃縮物を分離し、それにより、コバルトを回収する工程と、
(c)浸出溶液からニッケルを回収する工程と、
を含む、方法に関する。
Claims (28)
- 金属およびコバルトを含む固体鉱石または鉱石処理中間体から、ニッケル、銅および亜鉛からなる群から選択される金属を選択的に浸出する方法であって、前記固体鉱石または鉱石処理中間体を、コバルトの大部分を酸化するのに十分な量の酸化剤を含む酸性浸出溶液と接触させ、それにより、前記金属の大部分を溶解しながら、固相中にコバルトを安定化させる工程を含む、方法。
- 前記金属がニッケルである、請求項1に記載の方法。
- 前記固体鉱石または鉱石処理中間体が混合ニッケル−コバルト水酸化物沈殿物である、請求項1または2に記載の方法。
- 前記酸化剤が強力な酸化剤である、請求項1〜3のいずれか一項に記載の方法。
- 前記酸化剤が、コバルト(II)をコバルト(III)に酸化するのに十分な酸化電位を有する、請求項1〜4のいずれか一項に記載の方法。
- 前記酸化剤が、約0.5Vより大きい酸化電位(SHE)を有する、請求項1〜5のいずれか一項に記載の方法。
- 前記酸化剤が、約0.5V〜約3.0Vの酸化電位(SHE)を有する、請求項6に記載の方法。
- 前記浸出溶液が約1〜約6のpHを有する、請求項1〜7のいずれか一項に記載の方法。
- 前記浸出溶液が約2〜約5のpHを有する、請求項8に記載の方法。
- 前記酸化剤が、0〜6のpHで約0.5V〜約3.0Vの酸化電位(SHE)を有する、請求項7に記載の方法。
- 前記酸化剤が、4〜6のpHで約0.5V〜約1.0Vの酸化電位(SHE)を有する、請求項10に記載の方法。
- 前記酸化剤が、1〜4のpHで約1.0V〜約2.0Vの酸化電位(SHE)を有する、請求項10に記載の方法。
- 前記酸化剤が、過硫酸塩、過酸化物、過マンガン酸塩、過塩素酸塩、オゾン、酸化物および塩素からなる群から選択される、請求項1〜12のいずれか一項に記載の方法。
- コバルトの選択的沈殿を最適化するために、前記酸化剤の添加速度を制御する工程をさらに含む、請求項1〜13のいずれか一項に記載の方法。
- 前記酸化剤の添加速度を制御する工程が、前記酸化剤を一定時間にわたって少しずつ添加することを含む、請求項14に記載の方法。
- 前記浸出溶液を50℃より高く加熱する工程をさらに含む、請求項1〜15のいずれか一項に記載の方法。
- 前記金属の大部分が、1〜5時間後、前記鉱石または鉱石処理中間体から前記浸出溶液内に浸出する、請求項1〜16のいずれか一項に記載の方法。
- 前記金属の大部分が、1〜3時間後、前記鉱石または鉱石処理中間体から前記浸出溶液内に浸出する、請求項17に記載の方法。
- 前記酸化剤が、前記鉱石または鉱石処理中間体中にコバルトおよびマンガンを混合するために80%〜200%の化学量論的当量で前記浸出溶液中に存在する、請求項1〜18のいずれか一項に記載の方法。
- 前記鉱石または鉱石処理中間体がマンガンをさらに含み、前記量の酸化剤での処理により、前記金属の大部分を溶解しながら、前記マンガンの大部分が固相中で安定化する、請求項1に記載の方法。
- 前記浸出溶液が、前記鉱石または鉱石処理中間体と接触する前に、抽出される量の前記金属を含有する、請求項1〜20のいずれか一項に記載の方法。
- 浸出プロセスを完了した後、抽出した前記金属を、電解採取または水素還元によって前記浸出溶液から直接回収できる、請求項21に記載の方法。
- 前記浸出溶液が、前記鉱石または鉱石処理中間体と接触する前に、硫酸ニッケルを含有する、請求項21に記載の方法。
- 混合ニッケル−コバルト水酸化物沈殿物からニッケルおよびコバルトを回収する方法であって、
(a)前記混合ニッケル−コバルト水酸化物沈殿物を、酸化剤を含む酸性浸出溶液と接触させる工程であって、前記酸化剤は、ニッケルの大部分を溶解しながら、コバルトの大部分を固相中に安定化させるのに十分な量で存在する、工程と、
(b)溶解したニッケルを含有する前記浸出溶液から固体コバルト濃縮物を分離し、それにより、前記コバルトを回収する工程と、
(c)前記浸出溶液から前記ニッケルを回収する工程と、
を含む、方法。 - 前記混合ニッケル−コバルト水酸化物沈殿物がマンガンをさらに含み、前記量の酸化剤の添加により、前記マンガンの大部分も固相中に安定化する、請求項24に記載の方法。
- 前記浸出溶液から固体コバルトを分離する工程が、前記浸出溶液から固体マンガンを分離することも含む、請求項25に記載の方法。
- 回収した前記固体コバルトおよびマンガンを酸性溶液中に溶解する工程をさらに含む、請求項26に記載の方法。
- 請求項4〜請求項23のいずれか一項に従って実施される請求項24に記載の方法。
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