WO1995028223A1 - Procede de lixiviation en presence d'abrasifs - Google Patents
Procede de lixiviation en presence d'abrasifs Download PDFInfo
- Publication number
- WO1995028223A1 WO1995028223A1 PCT/US1994/004257 US9404257W WO9528223A1 WO 1995028223 A1 WO1995028223 A1 WO 1995028223A1 US 9404257 W US9404257 W US 9404257W WO 9528223 A1 WO9528223 A1 WO 9528223A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- copper
- contacting
- solids
- lixiviant
- solid particles
- Prior art date
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 32
- 239000007787 solid Substances 0.000 claims abstract description 86
- 239000010949 copper Substances 0.000 claims abstract description 82
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 81
- 229910052802 copper Inorganic materials 0.000 claims abstract description 81
- 238000000034 method Methods 0.000 claims abstract description 78
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 60
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 30
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 28
- AOSFMYBATFLTAQ-UHFFFAOYSA-N 1-amino-3-(benzimidazol-1-yl)propan-2-ol Chemical compound C1=CC=C2N(CC(O)CN)C=NC2=C1 AOSFMYBATFLTAQ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000013019 agitation Methods 0.000 claims abstract description 17
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical class [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 61
- 239000002245 particle Substances 0.000 claims description 51
- 239000012141 concentrate Substances 0.000 claims description 31
- 239000000377 silicon dioxide Substances 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 16
- 230000001747 exhibiting effect Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 6
- 238000005201 scrubbing Methods 0.000 claims description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 229910052961 molybdenite Inorganic materials 0.000 claims description 3
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- 239000007800 oxidant agent Substances 0.000 abstract description 2
- 229910052951 chalcopyrite Inorganic materials 0.000 description 15
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- 238000011084 recovery Methods 0.000 description 13
- 229910052770 Uranium Inorganic materials 0.000 description 7
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 6
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 6
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 6
- 235000011130 ammonium sulphate Nutrition 0.000 description 6
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 229910052750 molybdenum Inorganic materials 0.000 description 6
- 239000011733 molybdenum Substances 0.000 description 6
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 5
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 4
- -1 ores Substances 0.000 description 4
- 239000003082 abrasive agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229960003280 cupric chloride Drugs 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 2
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052947 chalcocite Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 2
- 229940045803 cuprous chloride Drugs 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- WWNBZGLDODTKEM-UHFFFAOYSA-N sulfanylidenenickel Chemical compound [Ni]=S WWNBZGLDODTKEM-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical class [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052946 acanthite Inorganic materials 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012670 alkaline solution Substances 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
- 150000003863 ammonium salts Chemical class 0.000 description 1
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 description 1
- UIFOTCALDQIDTI-UHFFFAOYSA-N arsanylidynenickel Chemical compound [As]#[Ni] UIFOTCALDQIDTI-UHFFFAOYSA-N 0.000 description 1
- 229910052948 bornite Inorganic materials 0.000 description 1
- 239000008364 bulk solution Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 229910001779 copper mineral Inorganic materials 0.000 description 1
- 229910052955 covellite Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- FWABRVJYGBOLEM-UHFFFAOYSA-N diazanium;azane;carbonate Chemical compound N.[NH4+].[NH4+].[O-]C([O-])=O FWABRVJYGBOLEM-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052953 millerite Inorganic materials 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052954 pentlandite Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0446—Leaching processes with an ammoniacal liquor or with a hydroxide of an alkali or alkaline-earth metal
-
- 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
- C22B15/0078—Leaching or slurrying with ammoniacal solutions, e.g. ammonium hydroxide
-
- 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
Definitions
- Molybdenum concentrate sized according to the invention and having 3.3% copper, was leached for seven hours with the lixiviant of example 1 in an agitated, closed leaching vessel containing silica sand particles of about 500 ⁇ m diameter. Of the copper in the concentrate, 96.4% was removed leaving a molybdenum concentrate with 0.14 wt% copper.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
L'invention se rapporte à un procédé de lixiviation du cuivre et/ou du nickel à partir de sources solides utilisées comme charges au moyen d'un agent de lixiviation contenant du gaz ammoniac et du bisulfure d'ammonium. Ce procédé s'effectue par brassage en présence de solides abrasifs relativement gros et d'un agent d'oxydation, de préférence l'air ou l'oxygène. Les solides abrasifs nettoient la surface d'une charge de solides et facilitent l'exposition constante des nouvelles surfaces en vue d'obtenir une meilleure cinétique de lixiviation et des taux d'extraction maximaux. Le procédé s'applique notamment à des solides contenant des sulfures de cuivre.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP94916539A EP0756515A1 (fr) | 1994-04-19 | 1994-04-19 | Procede de lixiviation en presence d'abrasifs |
| PCT/US1994/004257 WO1995028223A1 (fr) | 1994-04-19 | 1994-04-19 | Procede de lixiviation en presence d'abrasifs |
| BR9408572A BR9408572A (pt) | 1994-04-19 | 1994-04-19 | Processo para a lixiviação de sólidos contendo cobre e/ou niquel processo para a liviação de sólidos contendo cobre e processo para a lixiviação de sólidos contendo niquel |
| RU96122472A RU2114197C1 (ru) | 1994-04-19 | 1994-04-19 | Выщелачивание в присутствии абразива |
| AU68157/94A AU697647B2 (en) | 1994-04-19 | 1994-04-19 | Leaching in the presence of abrasive |
| NZ266590A NZ266590A (en) | 1994-04-19 | 1994-04-19 | Leaching process; copper and/or nickel containing solids are treated with a lixiviant and abrasive solid particles |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1994/004257 WO1995028223A1 (fr) | 1994-04-19 | 1994-04-19 | Procede de lixiviation en presence d'abrasifs |
| BR9408572A BR9408572A (pt) | 1994-04-19 | 1994-04-19 | Processo para a lixiviação de sólidos contendo cobre e/ou niquel processo para a liviação de sólidos contendo cobre e processo para a lixiviação de sólidos contendo niquel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995028223A1 true WO1995028223A1 (fr) | 1995-10-26 |
Family
ID=25664666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1994/004257 WO1995028223A1 (fr) | 1994-04-19 | 1994-04-19 | Procede de lixiviation en presence d'abrasifs |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1995028223A1 (fr) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2175132A (en) * | 1934-01-16 | 1939-10-03 | Serciron Marcel | Preparation of metallic and ammonium sulphates |
| JPS501916A (fr) * | 1973-04-10 | 1975-01-10 | ||
| US3892364A (en) * | 1974-05-09 | 1975-07-01 | Henry L Lomasney | Apparatus and method for dispersing and comminuting the solid in a solid-liquid mixture |
| US3944144A (en) * | 1973-06-13 | 1976-03-16 | Dai Nippon Toryo Co., Ltd. | Method and apparatus for dispersing suspensions |
| US3953200A (en) * | 1975-03-27 | 1976-04-27 | Ethyl Corporation | Nickel extraction process |
| US3985553A (en) * | 1974-10-17 | 1976-10-12 | Sherritt Gordon Mines Limited | Process for the recovery of copper and ammonium sulphate from copper-bearing mineral sulphide ores or concentrates |
| US4066733A (en) * | 1975-03-28 | 1978-01-03 | Ethyl Corporation | Metal extraction from sea nodules |
| US4269808A (en) * | 1979-08-09 | 1981-05-26 | Seika Sangyo Co., Ltd. | Method of simultaneously subjecting ores to pulverization and leaching or extraction |
| US4880607A (en) * | 1982-12-20 | 1989-11-14 | Phillips Petroleum Company | Recovering mineral values from ores |
| US5007589A (en) * | 1987-03-26 | 1991-04-16 | Metprotech Limited | Process for simultaneously leaching and fine milling a subdivided source material |
-
1994
- 1994-04-19 WO PCT/US1994/004257 patent/WO1995028223A1/fr not_active Application Discontinuation
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2175132A (en) * | 1934-01-16 | 1939-10-03 | Serciron Marcel | Preparation of metallic and ammonium sulphates |
| JPS501916A (fr) * | 1973-04-10 | 1975-01-10 | ||
| US3944144A (en) * | 1973-06-13 | 1976-03-16 | Dai Nippon Toryo Co., Ltd. | Method and apparatus for dispersing suspensions |
| US3892364A (en) * | 1974-05-09 | 1975-07-01 | Henry L Lomasney | Apparatus and method for dispersing and comminuting the solid in a solid-liquid mixture |
| US3985553A (en) * | 1974-10-17 | 1976-10-12 | Sherritt Gordon Mines Limited | Process for the recovery of copper and ammonium sulphate from copper-bearing mineral sulphide ores or concentrates |
| US3953200A (en) * | 1975-03-27 | 1976-04-27 | Ethyl Corporation | Nickel extraction process |
| US4066733A (en) * | 1975-03-28 | 1978-01-03 | Ethyl Corporation | Metal extraction from sea nodules |
| US4269808A (en) * | 1979-08-09 | 1981-05-26 | Seika Sangyo Co., Ltd. | Method of simultaneously subjecting ores to pulverization and leaching or extraction |
| US4880607A (en) * | 1982-12-20 | 1989-11-14 | Phillips Petroleum Company | Recovering mineral values from ores |
| US5007589A (en) * | 1987-03-26 | 1991-04-16 | Metprotech Limited | Process for simultaneously leaching and fine milling a subdivided source material |
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