CA2067841A1 - Process for leaching gold and silver - Google Patents
Process for leaching gold and silverInfo
- Publication number
- CA2067841A1 CA2067841A1 CA002067841A CA2067841A CA2067841A1 CA 2067841 A1 CA2067841 A1 CA 2067841A1 CA 002067841 A CA002067841 A CA 002067841A CA 2067841 A CA2067841 A CA 2067841A CA 2067841 A1 CA2067841 A1 CA 2067841A1
- Authority
- CA
- Canada
- Prior art keywords
- peroxoborate
- leaching
- leached
- cyanide
- mill
- 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.)
- Abandoned
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 32
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 20
- 239000010931 gold Substances 0.000 title claims abstract description 20
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 7
- 239000004332 silver Substances 0.000 title claims abstract description 7
- 230000008569 process Effects 0.000 title claims description 25
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000012141 concentrate Substances 0.000 claims abstract description 6
- 239000002699 waste material Substances 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims description 22
- -1 sodium perborate mono- Chemical class 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
- 229960001922 sodium perborate Drugs 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 150000004685 tetrahydrates Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract description 20
- 239000000243 solution Substances 0.000 abstract description 9
- 239000007787 solid Substances 0.000 abstract description 4
- 238000013019 agitation Methods 0.000 description 11
- 238000000605 extraction Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000004343 Calcium peroxide Substances 0.000 description 2
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 description 2
- 235000019402 calcium peroxide Nutrition 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- CWVZGJORVTZXFW-UHFFFAOYSA-N [benzyl(dimethyl)silyl]methyl carbamate Chemical compound NC(=O)OC[Si](C)(C)CC1=CC=CC=C1 CWVZGJORVTZXFW-UHFFFAOYSA-N 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 239000012935 ammoniumperoxodisulfate Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical compound [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000012633 leachable Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229940045872 sodium percarbonate Drugs 0.000 description 1
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001238 wet grinding Methods 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
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Chemically Coating (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Switches (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4114514A DE4114514A1 (de) | 1991-05-03 | 1991-05-03 | Verfahren zur laugung von gold und silber |
| DEP4114514.3 | 1991-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2067841A1 true CA2067841A1 (en) | 1992-11-04 |
Family
ID=6430935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002067841A Abandoned CA2067841A1 (en) | 1991-05-03 | 1992-05-01 | Process for leaching gold and silver |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP0512247B1 (de) |
| AT (1) | ATE134712T1 (de) |
| AU (1) | AU642087B2 (de) |
| BR (1) | BR9201586A (de) |
| CA (1) | CA2067841A1 (de) |
| DE (2) | DE4114514A1 (de) |
| ES (1) | ES2084203T3 (de) |
| ZA (1) | ZA923190B (de) |
| ZW (1) | ZW4892A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19829274C2 (de) * | 1998-07-01 | 2002-06-20 | Otb Oberflaechentechnik Berlin | Verfahren zur Rückgewinnung von Edelmetallen |
| DE102020209880A1 (de) | 2020-08-05 | 2022-02-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Gewinnung von mindestens einem Edelmetall |
| DE102020209884A1 (de) | 2020-08-05 | 2022-02-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Verfahren zur Gewinnung von Gold |
| DE102020209885A1 (de) | 2020-08-05 | 2022-02-10 | Robert Bosch Gesellschaft mit beschränkter Haftung | Kugelmühle und Verfahren zur Gewinnung von Gold und/oder Silber und/oder mindestens einem Platinmetall |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU587850B2 (en) * | 1985-08-26 | 1989-08-31 | Bendigo Gold Associates Pty. Ltd. | A method of pre-treating an ore with hot alkali to improve the recovery of metal valves |
| DE4017899C1 (en) * | 1990-06-02 | 1991-11-14 | Degussa Ag, 6000 Frankfurt, De | Extn. of silver and gold from ores - by contacting ore with aq. leaching soln. contg. cyanide in presence of peroxo:borate, and sepg. cyano complexes formed |
-
1991
- 1991-05-03 DE DE4114514A patent/DE4114514A1/de not_active Withdrawn
-
1992
- 1992-03-27 ZW ZW48/92A patent/ZW4892A1/xx unknown
- 1992-04-01 DE DE59205427T patent/DE59205427D1/de not_active Expired - Fee Related
- 1992-04-01 EP EP92105566A patent/EP0512247B1/de not_active Expired - Lifetime
- 1992-04-01 AT AT92105566T patent/ATE134712T1/de not_active IP Right Cessation
- 1992-04-01 ES ES92105566T patent/ES2084203T3/es not_active Expired - Lifetime
- 1992-04-29 BR BR929201586A patent/BR9201586A/pt not_active Application Discontinuation
- 1992-04-30 ZA ZA923190A patent/ZA923190B/xx unknown
- 1992-05-01 AU AU15960/92A patent/AU642087B2/en not_active Ceased
- 1992-05-01 CA CA002067841A patent/CA2067841A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE59205427D1 (de) | 1996-04-04 |
| ZW4892A1 (en) | 1993-02-17 |
| EP0512247A2 (de) | 1992-11-11 |
| ES2084203T3 (es) | 1996-05-01 |
| ATE134712T1 (de) | 1996-03-15 |
| ZA923190B (en) | 1993-01-27 |
| AU642087B2 (en) | 1993-10-07 |
| DE4114514A1 (de) | 1992-11-05 |
| EP0512247B1 (de) | 1996-02-28 |
| BR9201586A (pt) | 1992-12-15 |
| AU1596092A (en) | 1992-11-05 |
| EP0512247A3 (en) | 1993-05-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |