JPS5933652B2 - 亜鉛及び鉄を含有する鉱物質硫化物の２段階加圧浸出方法 - Google Patents
亜鉛及び鉄を含有する鉱物質硫化物の２段階加圧浸出方法Info
- Publication number
- JPS5933652B2 JPS5933652B2 JP51125551A JP12555176A JPS5933652B2 JP S5933652 B2 JPS5933652 B2 JP S5933652B2 JP 51125551 A JP51125551 A JP 51125551A JP 12555176 A JP12555176 A JP 12555176A JP S5933652 B2 JPS5933652 B2 JP S5933652B2
- Authority
- JP
- Japan
- Prior art keywords
- leaching
- stage
- zinc
- sulfide
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000002386 leaching Methods 0.000 title claims description 159
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 87
- 239000011701 zinc Substances 0.000 title claims description 78
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims description 75
- 229910052725 zinc Inorganic materials 0.000 title claims description 74
- 229910052742 iron Inorganic materials 0.000 title claims description 41
- 238000000034 method Methods 0.000 title claims description 40
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 11
- 239000011707 mineral Substances 0.000 title claims description 11
- 150000003568 thioethers Chemical class 0.000 title claims 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 59
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 54
- 239000002253 acid Substances 0.000 claims description 47
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 40
- 239000002002 slurry Substances 0.000 claims description 23
- 239000003792 electrolyte Substances 0.000 claims description 19
- 239000011593 sulfur Substances 0.000 claims description 19
- 229910052717 sulfur Inorganic materials 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000005868 electrolysis reaction Methods 0.000 claims description 10
- 150000002739 metals Chemical class 0.000 claims description 8
- 230000001590 oxidative effect Effects 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 description 17
- 239000012141 concentrate Substances 0.000 description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 9
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 150000004763 sulfides Chemical class 0.000 description 7
- 239000005083 Zinc sulfide Substances 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 239000011133 lead Substances 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 229910052984 zinc sulfide Inorganic materials 0.000 description 6
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 6
- 235000013980 iron oxide Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000007858 starting material Substances 0.000 description 4
- 235000011149 sulphuric acid Nutrition 0.000 description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 3
- UXLHEHXLMSUOOC-UHFFFAOYSA-N [S].[Fe].[Zn] Chemical compound [S].[Fe].[Zn] UXLHEHXLMSUOOC-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- -1 ferrous metals Chemical class 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 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
- 239000000159 acid neutralizing agent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000008055 alkyl aryl sulfonates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 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
- 229920005551 calcium lignosulfonate Polymers 0.000 description 1
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 1
- 239000003795 chemical substances by application Substances 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
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000009291 froth flotation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010909 process residue Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000005029 sieve analysis Methods 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- 229910052950 sphalerite Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000016804 zinc Nutrition 0.000 description 1
- 239000011787 zinc oxide 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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- 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)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA238,439A CA1049953A (en) | 1975-10-22 | 1975-10-22 | Two-stage pressure leaching process for zinc and iron bearing mineral sulphides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5266818A JPS5266818A (en) | 1977-06-02 |
| JPS5933652B2 true JPS5933652B2 (ja) | 1984-08-17 |
Family
ID=4104376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP51125551A Expired JPS5933652B2 (ja) | 1975-10-22 | 1976-10-21 | 亜鉛及び鉄を含有する鉱物質硫化物の２段階加圧浸出方法 |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US4004991A (OSRAM) |
| JP (1) | JPS5933652B2 (OSRAM) |
| AU (1) | AU497393B2 (OSRAM) |
| BE (1) | BE847511A (OSRAM) |
| BR (1) | BR7607062A (OSRAM) |
| CA (1) | CA1049953A (OSRAM) |
| DE (1) | DE2647601C2 (OSRAM) |
| DK (1) | DK476276A (OSRAM) |
| ES (1) | ES452614A1 (OSRAM) |
| FI (1) | FI66913C (OSRAM) |
| FR (1) | FR2328775A1 (OSRAM) |
| GB (1) | GB1494990A (OSRAM) |
| IE (1) | IE44035B1 (OSRAM) |
| MX (1) | MX143151A (OSRAM) |
| NL (1) | NL7611752A (OSRAM) |
| SE (1) | SE422813B (OSRAM) |
| YU (1) | YU39486B (OSRAM) |
| ZA (1) | ZA766135B (OSRAM) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4330379A (en) * | 1979-01-24 | 1982-05-18 | National Institute For Metallurgy | Leaching of zinc containing sulphide minerals |
| US4274931A (en) * | 1979-01-24 | 1981-06-23 | National Institute For Metallurgy | Leaching process for zinc sulphide containing materials |
| CA1155418A (en) * | 1980-02-19 | 1983-10-18 | Richard T. Chow | Electrowinning of zinc |
| CA1166022A (en) * | 1981-05-22 | 1984-04-24 | Donald R. Weir | Recovery of zinc from zinc containing sulphidic material |
| CA1176853A (en) * | 1981-08-05 | 1984-10-30 | Gerald L. Bolton | Process for recovering zinc from zinc ferrite material |
| US4378275A (en) * | 1981-12-03 | 1983-03-29 | Saudi-Sudanese Red Sea Joint Commission | Metal sulphide extraction |
| CA1206008A (en) * | 1982-02-24 | 1986-06-17 | Donald R. Weir | Recovery of zinc from zinc-containing sulphidic material |
| CA1195846A (en) * | 1982-06-03 | 1985-10-29 | Donald R. Weir | Recovery of zinc from zinc-containing sulphidic material |
| CA1212242A (en) * | 1982-07-27 | 1986-10-07 | Donald R. Weir | Recovery of zinc from zinc-containing sulphidic material |
| CA1216157A (en) * | 1982-09-29 | 1987-01-06 | Donald R. Weir | Process for separately recovering zinc and lead values from zinc and lead containing sulphidic ore |
| LU85385A1 (fr) * | 1984-05-28 | 1986-01-29 | Mines Fond Zinc Vieille | Procede de lixiviation de sulfures contenant du zinc et du fer |
| US4578163A (en) * | 1984-12-03 | 1986-03-25 | Homestake Mining Company | Gold recovery process |
| DE3634359A1 (de) * | 1986-10-09 | 1988-04-21 | Ruhr Zink Gmbh | Verfahren zur aufarbeitung von rueckstaenden aus der hydrometallurgischen zink-gewinnung |
| AU596716B2 (en) * | 1986-12-18 | 1990-05-10 | Electrolytic Zinc Company Of Australasia Limited | Hydrometallurgical recovery of metals and elemental sulphur from metallic sulphides |
| US4979987A (en) * | 1988-07-19 | 1990-12-25 | First Miss Gold, Inc. | Precious metals recovery from refractory carbonate ores |
| AP538A (en) * | 1992-06-26 | 1996-09-18 | Intec Pty Ltd | Production of metal from minerals |
| GB9309144D0 (en) * | 1993-05-04 | 1993-06-16 | Sherritt Gordon Ltd | Recovery of metals from sulphidic material |
| BE1007906A3 (nl) * | 1993-12-23 | 1995-11-14 | Union Miniere Sa | Werkwijze voor het logen van zwavelhoudend zinkconcentraat en zinkferriet. |
| BE1007417A3 (fr) * | 1993-08-27 | 1995-06-13 | Union Miniere Sa | Procede de lixiviation de concentre sulfure de zinc et de ferrite de zinc. |
| CA2167729C (en) * | 1993-08-27 | 2004-10-26 | John W. Van Put | Process for the extraction of zinc from sulphide concentrates |
| GB9422476D0 (en) * | 1994-11-08 | 1995-01-04 | Sherritt Inc | Recovery of zinc from sulphidic concentrates |
| GB9503877D0 (en) * | 1995-02-27 | 1995-04-19 | Sherritt Inc | Recovery of copper from sulphidic concentrates |
| AUPN191395A0 (en) * | 1995-03-22 | 1995-04-27 | M.I.M. Holdings Limited | Atmospheric mineral leaching process |
| AUPN476695A0 (en) * | 1995-08-14 | 1995-09-07 | Dominion Mining Limited | Method of processing a copper mineral species |
| US6471849B1 (en) | 2000-09-11 | 2002-10-29 | Cominco Engineering Services Ltd. | Process for the recovery of zinc from a zinc sulphide ore or concentrate |
| FI110268B (fi) * | 2001-03-09 | 2002-12-31 | Outokumpu Oy | Menetelmä kalsiumin poistamiseksi sinkkiprosessin sulfaattiliuoksista |
| US7604783B2 (en) * | 2004-12-22 | 2009-10-20 | Placer Dome Technical Services Limited | Reduction of lime consumption when treating refractor gold ores or concentrates |
| US8061888B2 (en) * | 2006-03-17 | 2011-11-22 | Barrick Gold Corporation | Autoclave with underflow dividers |
| US8252254B2 (en) * | 2006-06-15 | 2012-08-28 | Barrick Gold Corporation | Process for reduced alkali consumption in the recovery of silver |
| CN102824942A (zh) * | 2012-09-07 | 2012-12-19 | 白银有色集团股份有限公司 | 一种球磨机钢球级配方法及其应用 |
| CN103613116B (zh) * | 2013-12-09 | 2014-11-05 | 衡阳师范学院 | 一种同时综合回收利用钢铁厂锌灰和高砷氧化锌的方法 |
| CN103952547A (zh) * | 2014-05-22 | 2014-07-30 | 北京矿冶研究总院 | 一种锌加压浸出一段渣的处理方法 |
| CN113846214B (zh) * | 2021-09-16 | 2023-03-31 | 昆明理工大学 | 一种湿法炼锌生产中含锌物料的处理方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2996440A (en) * | 1959-03-12 | 1961-08-15 | Sherritt Gordon Mines Ltd | Method for the production of zinc |
| US3143486A (en) * | 1960-12-05 | 1964-08-04 | Electrolyt Zinc Australasia | Recovery of zinc from zinc plant residue |
| US3434798A (en) * | 1964-10-02 | 1969-03-25 | Asturienne Mines Comp Royale | Process for recovering zinc from ferrites |
| FR1492518A (fr) * | 1965-09-11 | 1967-08-18 | Sherritt Gordon Mines Ltd | Procédé hydrométallurgique pour récupérer le zine et le soufre contenus dans des sulfures minéraux |
| NL136386C (OSRAM) * | 1965-09-11 | 1900-01-01 | ||
| CA971368A (en) * | 1972-11-20 | 1975-07-22 | Paul Kawulka | Recovery of zinc from zinc sulphides by direct pressure leaching |
-
1975
- 1975-10-22 CA CA238,439A patent/CA1049953A/en not_active Expired
- 1975-12-12 US US05/640,292 patent/US4004991A/en not_active Expired - Lifetime
-
1976
- 1976-10-12 IE IE2244/76A patent/IE44035B1/en unknown
- 1976-10-15 GB GB4297076A patent/GB1494990A/en not_active Expired
- 1976-10-19 MX MX16670176A patent/MX143151A/es unknown
- 1976-10-20 YU YU256376A patent/YU39486B/xx unknown
- 1976-10-21 FI FI763006A patent/FI66913C/fi not_active IP Right Cessation
- 1976-10-21 DE DE2647601A patent/DE2647601C2/de not_active Expired
- 1976-10-21 AU AU18890/76A patent/AU497393B2/en not_active Expired
- 1976-10-21 JP JP51125551A patent/JPS5933652B2/ja not_active Expired
- 1976-10-21 BR BR7607062A patent/BR7607062A/pt unknown
- 1976-10-21 DK DK476276A patent/DK476276A/da not_active Application Discontinuation
- 1976-10-21 BE BE171693A patent/BE847511A/xx not_active IP Right Cessation
- 1976-10-21 FR FR7631760A patent/FR2328775A1/fr active Granted
- 1976-10-22 SE SE7611751A patent/SE422813B/xx unknown
- 1976-10-22 ZA ZA766135A patent/ZA766135B/xx unknown
- 1976-10-22 ES ES452614A patent/ES452614A1/es not_active Expired
- 1976-10-22 NL NL7611752A patent/NL7611752A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| MX143151A (es) | 1981-03-25 |
| YU39486B (en) | 1984-12-31 |
| DE2647601C2 (de) | 1986-09-25 |
| FR2328775A1 (fr) | 1977-05-20 |
| BE847511A (fr) | 1977-02-14 |
| FI66913B (fi) | 1984-08-31 |
| AU497393B2 (en) | 1978-12-14 |
| SE422813B (sv) | 1982-03-29 |
| GB1494990A (en) | 1977-12-14 |
| ES452614A1 (es) | 1977-10-01 |
| ZA766135B (en) | 1977-09-28 |
| FR2328775B1 (OSRAM) | 1980-08-29 |
| FI66913C (fi) | 1984-12-10 |
| DE2647601A1 (de) | 1977-04-28 |
| NL7611752A (nl) | 1977-04-26 |
| US4004991A (en) | 1977-01-25 |
| BR7607062A (pt) | 1977-09-06 |
| YU256376A (en) | 1982-06-30 |
| JPS5266818A (en) | 1977-06-02 |
| CA1049953A (en) | 1979-03-06 |
| AU1889076A (en) | 1978-04-27 |
| IE44035L (en) | 1977-04-22 |
| SE7611751L (sv) | 1977-04-23 |
| FI763006A7 (OSRAM) | 1977-04-23 |
| DK476276A (da) | 1977-04-23 |
| IE44035B1 (en) | 1981-07-29 |
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| US3637371A (en) | Direct pressure leaching of copper-iron sulphides | |
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