CA1234991A - Recovery of gold from auriferous refractory iron- containing sulphidic ore - Google Patents
Recovery of gold from auriferous refractory iron- containing sulphidic oreInfo
- Publication number
- CA1234991A CA1234991A CA000464178A CA464178A CA1234991A CA 1234991 A CA1234991 A CA 1234991A CA 000464178 A CA000464178 A CA 000464178A CA 464178 A CA464178 A CA 464178A CA 1234991 A CA1234991 A CA 1234991A
- Authority
- CA
- Canada
- Prior art keywords
- slurry
- solids
- solution
- oxidized
- 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
- 239000010931 gold Substances 0.000 title claims abstract description 27
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 25
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000011084 recovery Methods 0.000 title description 10
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 73
- 230000003647 oxidation Effects 0.000 claims abstract description 72
- 239000007787 solid Substances 0.000 claims abstract description 66
- 239000002002 slurry Substances 0.000 claims abstract description 65
- 239000000243 solution Substances 0.000 claims abstract description 55
- 229910052742 iron Inorganic materials 0.000 claims abstract description 35
- 239000002253 acid Substances 0.000 claims abstract description 32
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 26
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000005864 Sulphur Substances 0.000 claims abstract description 24
- 238000005406 washing Methods 0.000 claims abstract description 24
- 230000002378 acidificating effect Effects 0.000 claims abstract description 21
- 229910021653 sulphate ion Inorganic materials 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001117 sulphuric acid Substances 0.000 claims abstract description 12
- 235000011149 sulphuric acid Nutrition 0.000 claims abstract description 12
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 230000001590 oxidative effect Effects 0.000 claims abstract description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims abstract description 7
- 238000010936 aqueous wash Methods 0.000 claims abstract description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 4
- 239000012298 atmosphere Substances 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 238000004090 dissolution Methods 0.000 claims abstract description 3
- 150000003568 thioethers Chemical class 0.000 claims abstract 2
- 239000011777 magnesium Substances 0.000 claims description 15
- 238000001556 precipitation Methods 0.000 claims description 14
- 229910052749 magnesium Inorganic materials 0.000 claims description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 9
- 150000002739 metals Chemical class 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 7
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 6
- 229910052785 arsenic Inorganic materials 0.000 claims description 6
- 229910052595 hematite Inorganic materials 0.000 claims description 6
- 239000011019 hematite Substances 0.000 claims description 6
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 6
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 6
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical compound [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- -1 sulphate ions Chemical class 0.000 claims description 3
- 229940000489 arsenate Drugs 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- 150000002506 iron compounds Chemical class 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims 2
- 238000004537 pulping Methods 0.000 claims 2
- 230000008929 regeneration Effects 0.000 claims 1
- 238000011069 regeneration method Methods 0.000 claims 1
- 238000002203 pretreatment Methods 0.000 abstract description 3
- 230000008719 thickening Effects 0.000 description 24
- 239000002562 thickening agent Substances 0.000 description 23
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 10
- 235000011941 Tilia x europaea Nutrition 0.000 description 10
- 239000004571 lime Substances 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000005188 flotation Methods 0.000 description 5
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 5
- 229910052683 pyrite Inorganic materials 0.000 description 5
- 239000011028 pyrite Substances 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 description 4
- 229910052964 arsenopyrite Inorganic materials 0.000 description 4
- 229910001810 hydroniumjarosite Inorganic materials 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000006386 neutralization reaction Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 150000004763 sulfides Chemical class 0.000 description 3
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 2
- 208000036366 Sensation of pressure Diseases 0.000 description 2
- 239000003929 acidic solution Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052787 antimony Inorganic materials 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000010908 decantation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- SLZWEMYSYKOWCG-UHFFFAOYSA-N Etacelasil Chemical compound COCCO[Si](CCCl)(OCCOC)OCCOC SLZWEMYSYKOWCG-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 235000014413 iron hydroxide Nutrition 0.000 description 1
- 229910000462 iron(III) oxide hydroxide Inorganic materials 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical class [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052959 stibnite Inorganic materials 0.000 description 1
- YALHCTUQSQRCSX-UHFFFAOYSA-N sulfane sulfuric acid Chemical compound S.OS(O)(=O)=O YALHCTUQSQRCSX-UHFFFAOYSA-N 0.000 description 1
- IHBMMJGTJFPEQY-UHFFFAOYSA-N sulfanylidene(sulfanylidenestibanylsulfanyl)stibane Chemical compound S=[Sb]S[Sb]=S IHBMMJGTJFPEQY-UHFFFAOYSA-N 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
- 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
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet 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)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000464178A CA1234991A (en) | 1984-09-27 | 1984-09-27 | Recovery of gold from auriferous refractory iron- containing sulphidic ore |
| US06/707,923 US4571264A (en) | 1984-09-27 | 1985-03-04 | Recovery of gold from refractory auriferous iron-containing sulphidic ore |
| PH32781A PH20721A (en) | 1984-09-27 | 1985-09-16 | Recovery of gold from auriferous refractory iron-containing sulphidic ore |
| ZW160/85A ZW16085A1 (en) | 1984-09-27 | 1985-09-20 | Recovery of gold from auriferous refractory iron-containing sulphidic ore |
| GR852307A GR852307B (en, 2012) | 1984-09-27 | 1985-09-23 | |
| ZA857333A ZA857333B (en) | 1984-09-27 | 1985-09-24 | Recovery of gold from auriferous refractory iron-containing sulphidic ore |
| BR8504707A BR8504707A (pt) | 1984-09-27 | 1985-09-25 | Processo para recuperar ouro de minerio sulfetado contendo ferro aurifero refratario |
| AU47894/85A AU569417B2 (en) | 1984-09-27 | 1985-09-25 | Acid oxidation pretreatment of refractory gold ore prior to conventional gold recovery |
| FI853714A FI83541C (fi) | 1984-09-27 | 1985-09-26 | Foerfarande foer tillvaratagande av guld ur guldhaltig jaerninnehaollande sulfidmalm. |
| PT81219A PT81219B (pt) | 1984-09-27 | 1985-09-27 | Processo para a recuperacao de ouro de minerio contendo sulfureto, aurifero, refractario, contendo ferro |
| ES547397A ES8606511A1 (es) | 1984-09-27 | 1985-09-27 | Procedimiento para recuperar oro de mineral sulfidico auri- fero refractario conteniendo hierro |
| JP60212714A JPS61179823A (ja) | 1984-09-27 | 1985-09-27 | 金回収方法 |
| EP85306889A EP0177291B1 (en) | 1984-09-27 | 1985-09-27 | Recovery of gold from auriferous refractory iron-containing sulphidic ore |
| DE8585306889T DE3582710D1 (de) | 1984-09-27 | 1985-09-27 | Goldgewinnung aus goldhaltigen, schwer aufschliessbaren sulfidischen erzen mit einem gehalt an eisen. |
| MX000016A MX167461B (es) | 1984-09-27 | 1985-10-01 | Procedimiento para la recuperacion de oro a partir de una mena sulfidica que contiene hierro, refractaria, aurifera |
| CN85107774A CN1006555B (zh) | 1984-09-27 | 1985-10-26 | 从难熔含金含铁硫化物精矿中回收黄金的工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000464178A CA1234991A (en) | 1984-09-27 | 1984-09-27 | Recovery of gold from auriferous refractory iron- containing sulphidic ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1234991A true CA1234991A (en) | 1988-04-12 |
Family
ID=4128788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000464178A Expired CA1234991A (en) | 1984-09-27 | 1984-09-27 | Recovery of gold from auriferous refractory iron- containing sulphidic ore |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4571264A (en, 2012) |
| EP (1) | EP0177291B1 (en, 2012) |
| JP (1) | JPS61179823A (en, 2012) |
| AU (1) | AU569417B2 (en, 2012) |
| BR (1) | BR8504707A (en, 2012) |
| CA (1) | CA1234991A (en, 2012) |
| DE (1) | DE3582710D1 (en, 2012) |
| ES (1) | ES8606511A1 (en, 2012) |
| FI (1) | FI83541C (en, 2012) |
| GR (1) | GR852307B (en, 2012) |
| MX (1) | MX167461B (en, 2012) |
| PH (1) | PH20721A (en, 2012) |
| PT (1) | PT81219B (en, 2012) |
| ZA (1) | ZA857333B (en, 2012) |
| ZW (1) | ZW16085A1 (en, 2012) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421858A (en) * | 1991-10-30 | 1995-06-06 | Novagold Resources Inc. | Ore feed heating |
| US5573575A (en) * | 1993-12-03 | 1996-11-12 | Geobiotics, Inc. | Method for rendering refractory sulfide ores more susceptible to biooxidation |
| US6146444A (en) * | 1993-12-03 | 2000-11-14 | Geobiotics, Inc. | Method for recovering metal value from concentrates of sulfide minerals |
Families Citing this family (56)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1229487A (en) * | 1984-09-27 | 1987-11-24 | Roman M. Genik-Sas-Berezowsky | Process for the recovery of silver from a residue essentially free of elemental sulphur |
| DE3534224A1 (de) * | 1985-09-23 | 1987-04-02 | Gock Eberhard Priv Doz Prof Dr | Verfahren zur nasschemischen gewinnung von edelmetallen aus kohlenstoffhaltigen arsenopyritkonzentraten |
| US4979987A (en) | 1988-07-19 | 1990-12-25 | First Miss Gold, Inc. | Precious metals recovery from refractory carbonate ores |
| GB9002311D0 (en) * | 1990-02-02 | 1990-04-04 | Rio Tinto Minerals Dev | Separation process |
| US5071477A (en) * | 1990-05-03 | 1991-12-10 | American Barrick Resources Corporation of Toronto | Process for recovery of gold from refractory ores |
| CA2032357A1 (en) * | 1990-12-14 | 1992-06-15 | Peter Maltby | Pressure oxidation methods for gold extraction and toxic waste treatment |
| US5458866A (en) * | 1994-02-14 | 1995-10-17 | Santa Fe Pacific Gold Corporation | Process for preferentially oxidizing sulfides in gold-bearing refractory ores |
| US5489326A (en) * | 1994-10-04 | 1996-02-06 | Barrick Gold Corporation | Gold recovery using controlled oxygen distribution pressure oxidation |
| US5536480A (en) * | 1994-11-29 | 1996-07-16 | Santa Fe Pacific Gold Corporation | Method for treating mineral material having organic carbon to facilitate recovery of gold and silver |
| AUPN191395A0 (en) * | 1995-03-22 | 1995-04-27 | M.I.M. Holdings Limited | Atmospheric mineral leaching process |
| US5653945A (en) * | 1995-04-18 | 1997-08-05 | Santa Fe Pacific Gold Corporation | Method for processing gold-bearing sulfide ores involving preparation of a sulfide concentrate |
| US6210648B1 (en) | 1996-10-23 | 2001-04-03 | Newmont Mining Corporation | Method for processing refractory auriferous sulfide ores involving preparation of a sulfide concentrate |
| US6251163B1 (en) * | 1998-03-04 | 2001-06-26 | Placer Dome, Inc. | Method for recovering gold from refractory carbonaceous ores |
| US6368381B1 (en) | 1998-03-11 | 2002-04-09 | Placer Dome Technical Services, Ltd. | Autoclave using agitator and sparge tube to provide high oxygen transfer rate to metal-containing solutions |
| AUPP230498A0 (en) | 1998-03-13 | 1998-04-09 | Lewis-Gray, Alexander Hamilton | In line leach reactor |
| US6660059B2 (en) | 2000-05-19 | 2003-12-09 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| DE60116323D1 (de) * | 2000-07-25 | 2006-02-02 | Phelps Dodge Corp Phoenix | Verfahren zur gewinnung von kupfer aus sulfiderzen unter verwendung einer feinstzermahlung und einer auslaugung unter druck bei mittelhohen temperaturen |
| US6680034B2 (en) * | 2000-07-25 | 2004-01-20 | Phelps Dodge Corporation | Method for recovering metal values from metal-containing materials using high temperature pressure leaching |
| EA005279B1 (ru) | 2000-07-25 | 2004-12-30 | Фелпс Додж Корпорейшн | Обработка содержащих элементарную серу материалов с использованием высокотемпературного автоклавного выщелачивания для производства серной кислоты и извлечения металла |
| RU2185453C1 (ru) * | 2000-12-28 | 2002-07-20 | Открытое акционерное общество "Иргиредмет" | Способ извлечения золота из руд |
| RU2190670C1 (ru) * | 2001-04-23 | 2002-10-10 | Дробаденко Валерий Павлович | Способ извлечения металлов из тонкоизмельченного глинисто-шламового рудного и техногенного сырья |
| US7476308B2 (en) * | 2001-07-25 | 2009-01-13 | Phelps Dodge Corporation | Process for multiple stage direct electrowinning of copper |
| US6451088B1 (en) * | 2001-07-25 | 2002-09-17 | Phelps Dodge Corporation | Method for improving metals recovery using high temperature leaching |
| US20050126923A1 (en) * | 2001-07-25 | 2005-06-16 | Phelps Dodge Corporation | Process for recovery of copper from copper-bearing material using medium temperature pressure leaching, direct electrowinning and solvent/solution extraction |
| US6451089B1 (en) | 2001-07-25 | 2002-09-17 | Phelps Dodge Corporation | Process for direct electrowinning of copper |
| US6641642B2 (en) | 2001-12-21 | 2003-11-04 | Newmont Usa Limited | High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species |
| US7722840B2 (en) * | 2002-11-15 | 2010-05-25 | Placer Dome Technical Services Limited | Method for thiosulfate leaching of precious metal-containing materials |
| US20040237721A1 (en) * | 2003-05-29 | 2004-12-02 | Morteza Baghalha | Anoxic leaching of precious metals with thiosulfate and precious metal oxidants |
| US7219804B2 (en) * | 2003-08-26 | 2007-05-22 | Newmont Usa Limited | Flotation processing including recovery of soluble nonferrous base metal values |
| RU2254388C1 (ru) * | 2003-10-14 | 2005-06-20 | Читинский государственный технический университет (ЧитГТУ) | Способ кучного выщелачивания золота |
| US7736487B2 (en) * | 2004-10-29 | 2010-06-15 | Freeport-Mcmoran Corporation | Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction |
| WO2006049632A1 (en) * | 2004-10-29 | 2006-05-11 | Phelps Dodge Corporation | Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction |
| EA010941B1 (ru) * | 2004-10-29 | 2008-12-30 | Фелпс Додж Корпорейшн | Способ извлечения меди |
| US7604783B2 (en) * | 2004-12-22 | 2009-10-20 | Placer Dome Technical Services Limited | Reduction of lime consumption when treating refractor gold ores or concentrates |
| GB0516912D0 (en) * | 2005-08-18 | 2005-09-28 | Fiset Gilles | Method and apparatus for the recovery of refractory mineral ores |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2777764A (en) * | 1954-07-09 | 1957-01-15 | American Cyanamid Co | Process of recovering precious metals from refractory source materials |
| US4038362A (en) * | 1976-11-04 | 1977-07-26 | Newmont Explorations Limited | Increasing the recoverability of gold from carbonaceous gold-bearing ores |
| CA1106617A (en) * | 1978-10-30 | 1981-08-11 | Grigori S. Victorovich | Autoclave oxidation leaching of sulfide materials containing copper, nickel and/or cobalt |
| ES476055A1 (es) * | 1978-12-15 | 1979-11-01 | Redondo Abad Angel Luis | Procedimiento para la obtencion de metales no ferreos a par-tir de minerales sulfurados complejos de base piritica que contengan cobre, plomo, cinc, plata y oro |
| US4259107A (en) * | 1979-12-13 | 1981-03-31 | Newmont Exploration Limited | Recovery of gold from sedimentary gold-bearing ores |
-
1984
- 1984-09-27 CA CA000464178A patent/CA1234991A/en not_active Expired
-
1985
- 1985-03-04 US US06/707,923 patent/US4571264A/en not_active Expired - Lifetime
- 1985-09-16 PH PH32781A patent/PH20721A/en unknown
- 1985-09-20 ZW ZW160/85A patent/ZW16085A1/xx unknown
- 1985-09-23 GR GR852307A patent/GR852307B/el unknown
- 1985-09-24 ZA ZA857333A patent/ZA857333B/xx unknown
- 1985-09-25 AU AU47894/85A patent/AU569417B2/en not_active Ceased
- 1985-09-25 BR BR8504707A patent/BR8504707A/pt not_active IP Right Cessation
- 1985-09-26 FI FI853714A patent/FI83541C/fi not_active IP Right Cessation
- 1985-09-27 JP JP60212714A patent/JPS61179823A/ja active Granted
- 1985-09-27 ES ES547397A patent/ES8606511A1/es not_active Expired
- 1985-09-27 EP EP85306889A patent/EP0177291B1/en not_active Expired - Lifetime
- 1985-09-27 DE DE8585306889T patent/DE3582710D1/de not_active Expired - Lifetime
- 1985-09-27 PT PT81219A patent/PT81219B/pt not_active IP Right Cessation
- 1985-10-01 MX MX000016A patent/MX167461B/es unknown
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421858A (en) * | 1991-10-30 | 1995-06-06 | Novagold Resources Inc. | Ore feed heating |
| US5573575A (en) * | 1993-12-03 | 1996-11-12 | Geobiotics, Inc. | Method for rendering refractory sulfide ores more susceptible to biooxidation |
| US6146444A (en) * | 1993-12-03 | 2000-11-14 | Geobiotics, Inc. | Method for recovering metal value from concentrates of sulfide minerals |
| US6387155B1 (en) | 1993-12-03 | 2002-05-14 | Geobiotics, Llc | Method for recovering metal values from concentrates of sulfide minerals |
| US6652622B2 (en) | 1993-12-03 | 2003-11-25 | Geobiotics, Llc. | Method for recovering metal values from concentrates of sulfide minerals |
| US7156894B2 (en) | 1993-12-03 | 2007-01-02 | Geobiotics, Llc | Method for recovering metal values from concentrates of sulfide minerals |
| US7429286B2 (en) | 1993-12-03 | 2008-09-30 | Geobiotics, Llc | Method for recovering metal values from concentrates of sulfide minerals |
| US8029598B2 (en) | 1993-12-03 | 2011-10-04 | Geobiotics, Llc | Method for recovering metal values from refractory sulfide ore |
Also Published As
| Publication number | Publication date |
|---|---|
| FI853714A0 (fi) | 1985-09-26 |
| ZW16085A1 (en) | 1986-02-19 |
| AU4789485A (en) | 1986-04-10 |
| AU569417B2 (en) | 1988-01-28 |
| PT81219B (pt) | 1987-09-30 |
| JPS61179823A (ja) | 1986-08-12 |
| US4571264A (en) | 1986-02-18 |
| FI83541B (fi) | 1991-04-15 |
| PT81219A (en) | 1985-10-01 |
| JPH0514775B2 (en, 2012) | 1993-02-25 |
| FI853714L (fi) | 1986-03-28 |
| ES547397A0 (es) | 1986-04-01 |
| DE3582710D1 (de) | 1991-06-06 |
| BR8504707A (pt) | 1986-07-22 |
| FI83541C (fi) | 1991-07-25 |
| EP0177291A2 (en) | 1986-04-09 |
| ZA857333B (en) | 1986-05-28 |
| PH20721A (en) | 1987-03-30 |
| GR852307B (en, 2012) | 1986-01-17 |
| EP0177291B1 (en) | 1991-05-02 |
| MX167461B (es) | 1993-03-24 |
| EP0177291A3 (en) | 1988-04-06 |
| ES8606511A1 (es) | 1986-04-01 |
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