MY106289A - Gold leaching. - Google Patents
Gold leaching.Info
- Publication number
- MY106289A MY106289A MYPI89000612A MYPI19890612A MY106289A MY 106289 A MY106289 A MY 106289A MY PI89000612 A MYPI89000612 A MY PI89000612A MY PI19890612 A MYPI19890612 A MY PI19890612A MY 106289 A MY106289 A MY 106289A
- Authority
- MY
- Malaysia
- Prior art keywords
- gold
- leaching
- solids
- peroxide
- extent
- Prior art date
Links
- 238000002386 leaching Methods 0.000 title abstract 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title 1
- 239000010931 gold Substances 0.000 title 1
- 229910052737 gold Inorganic materials 0.000 title 1
- 239000007787 solid Substances 0.000 abstract 5
- 238000013019 agitation Methods 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000001301 oxygen Substances 0.000 abstract 2
- 229910052760 oxygen Inorganic materials 0.000 abstract 2
- 238000011084 recovery Methods 0.000 abstract 2
- 239000004343 Calcium peroxide Substances 0.000 abstract 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical compound [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 abstract 1
- 235000019402 calcium peroxide Nutrition 0.000 abstract 1
- 230000001771 impaired effect Effects 0.000 abstract 1
- 150000004972 metal peroxides Chemical class 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000002978 peroxides Chemical class 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 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
-
- 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
- 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)
Abstract
LEACHING OF GOLD-BEARING SOLIDS, SUCH AS CRUSHED LEAN ORES OR MATERIAL RECOVERED FROM VERY OLD WASTE TIPS CAN BE CARRIED OUT WITH A DILUTE AQUEOUS ALKALI CYANIDE SOLUTION, BUT THE EXTENT AND/OR RATE OF RECOVERY OF GOLD IS IMPAIRED BY THE ANAEROBIC OR REDUCING CONDITIONS THAT CAN EXIST IN SUCH HEAPS, AND ESPECIALLY TOWARDS THEIR BASE AND OR BY POOR SUPPLY OF OXYGEN IN AGITATION LEACHING. THE RATE AND/OR EXTENT OF GOLD RECOVERY IN HEAP LEACHING CAN BE INCREASED AND THE SUPPLY OF OXYGEN SIMPLY CONTROLLED BY SLOW RELEASE IN AGITATION LEACHING, USING OTHERWISE IDENTICAL CONDITIONS BY EMPLOYING AN EFFECTIVE AMOUNT OF A SLOW DISSOLVING POORLY SOLUBLE SOLID METAL PEROXIDE, EITHER BY INCORPORATING IT WITHIN THE HEAP OR IN THE MIXTURE OF GOLD-BEARING SOLIDS AND LIXIVIANT. THE PEROXIDE IS ADVANTAGEOUSLY CALCIUM PEROXIDE BECAUSE IT IS NOT ONLY VERY EFFECTIVE BUT ALSO IS ENVIRONMENTALLY SUITABLE. THE AMOUNT EMPLOYED IS PREFERABLY FROM 1 TO 10 PARTS W/W PER 1000 PARTS OF GOLD-BEARING SOLIDS FOR THE LOW GRADE MATERIAL, USUALLY CONTAINING FROM 1 TO 10 G GOLD PER TONNE SOLIDS.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB888810736A GB8810736D0 (en) | 1988-05-06 | 1988-05-06 | Heap leaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY106289A true MY106289A (en) | 1995-04-29 |
Family
ID=10636453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MYPI89000612A MY106289A (en) | 1988-05-06 | 1989-05-05 | Gold leaching. |
Country Status (12)
| Country | Link |
|---|---|
| AR (1) | AR240573A1 (en) |
| BR (1) | BR8902117A (en) |
| ES (1) | ES2013491A6 (en) |
| FR (1) | FR2631043B1 (en) |
| GB (2) | GB8810736D0 (en) |
| MX (1) | MX171665B (en) |
| MY (1) | MY106289A (en) |
| NZ (1) | NZ229001A (en) |
| PH (1) | PH25632A (en) |
| PT (1) | PT90480B (en) |
| ZA (1) | ZA893322B (en) |
| ZW (1) | ZW6289A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA902545B (en) * | 1989-04-04 | 1991-03-27 | Interox Chemicals Ltd | Manufacture of peroxides |
| US5336474A (en) * | 1990-06-02 | 1994-08-09 | Degussa Aktiengesellschaft | Process for leaching of precious metals |
| GB9418984D0 (en) * | 1994-09-21 | 1994-11-09 | Solvay Interox Ltd | Low profile baffled reactor |
| ES2163948B1 (en) * | 1998-07-14 | 2003-08-01 | Consejo Superior Investigacion | HYDROMETALURGICAL PROCEDURE FOR THE GOLD RECOVERY OF MINERALS AND METAL MATERIALS. |
| US7285256B2 (en) | 2003-04-04 | 2007-10-23 | Newmont Usa Limited | Precious metal recovery using thiocyanate lixiviant |
| RU2013142830A (en) * | 2011-02-23 | 2015-04-10 | Вэстерн Плэтинум Лтд. | ENERGY-SAVING EXTRACTION OF NOBLE METALS AND NON-FERROUS METALS |
| RU2579858C1 (en) * | 2014-11-20 | 2016-04-10 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский технологический университет "МИСиС" | Method of extracting gold from ores |
| CN105797848B (en) * | 2016-03-18 | 2018-07-03 | 广东省资源综合利用研究所 | A kind of high intensity magnetic separation that includes is thrown in advance except the golden method of reinforcing leaching of thin mud in golden iron oxide ore |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE85239C (en) * | ||||
| US4039327A (en) * | 1976-08-02 | 1977-08-02 | American Chemical & Refining Company Inc. | Stepwise process for recovering precious metals from solution |
| DE3637082C1 (en) * | 1986-10-31 | 1988-05-19 | Degussa | Process for leaching precious metals from ores or ore concentrates using cyanide solutions with the addition of hydrogen peroxide |
-
1988
- 1988-05-06 GB GB888810736A patent/GB8810736D0/en active Pending
-
1989
- 1989-05-03 PH PH38599A patent/PH25632A/en unknown
- 1989-05-04 MX MX015929A patent/MX171665B/en unknown
- 1989-05-04 NZ NZ229001A patent/NZ229001A/en unknown
- 1989-05-05 MY MYPI89000612A patent/MY106289A/en unknown
- 1989-05-05 ZA ZA893322A patent/ZA893322B/en unknown
- 1989-05-05 PT PT90480A patent/PT90480B/en not_active IP Right Cessation
- 1989-05-05 BR BR898902117A patent/BR8902117A/en not_active IP Right Cessation
- 1989-05-05 ES ES8901565A patent/ES2013491A6/en not_active Expired - Lifetime
- 1989-05-05 AR AR31385389A patent/AR240573A1/en active
- 1989-05-05 FR FR898906085A patent/FR2631043B1/en not_active Expired - Lifetime
- 1989-05-05 GB GB8910300A patent/GB2219474B/en not_active Expired - Lifetime
- 1989-05-05 ZW ZW62/89A patent/ZW6289A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AU624374B2 (en) | 1992-06-11 |
| AU3407389A (en) | 1989-11-09 |
| ZW6289A1 (en) | 1989-10-18 |
| PT90480B (en) | 1994-08-31 |
| ES2013491A6 (en) | 1990-05-01 |
| GB8910300D0 (en) | 1989-06-21 |
| FR2631043A1 (en) | 1989-11-10 |
| GB2219474B (en) | 1992-08-19 |
| NZ229001A (en) | 1991-04-26 |
| AR240573A1 (en) | 1990-05-31 |
| PT90480A (en) | 1989-11-30 |
| FR2631043B1 (en) | 1992-05-15 |
| GB8810736D0 (en) | 1988-06-08 |
| ZA893322B (en) | 1990-03-28 |
| PH25632A (en) | 1991-08-08 |
| MX171665B (en) | 1993-11-10 |
| GB2219474A (en) | 1989-12-13 |
| BR8902117A (en) | 1990-01-02 |
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