GB452832A - Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials - Google Patents
Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materialsInfo
- Publication number
- GB452832A GB452832A GB292936A GB292936A GB452832A GB 452832 A GB452832 A GB 452832A GB 292936 A GB292936 A GB 292936A GB 292936 A GB292936 A GB 292936A GB 452832 A GB452832 A GB 452832A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- precious metals
- treatment
- value
- 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
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
- C22B11/06—Chloridising
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
Materials containing precious metals, particularly poor ores or tailings, are treated with a solution of an oxidizing halogen compound such as a hypochlorite, the pH value of which is adjusted to a value between 6,5 and 5, air under pressure being preferably blown through the solution during the treatment. The solution obtained, containing precious metals such as gold, platinum, palladium, iridium, and osmium, non-ferrous metals such as copper, cobalt, nickel, and bismuth, and also iron and aluminium, is subjected to the action of a reducing agent such as charcoal to precipitate the precious metals, and then electrolysed to regenerate the hypochlorite &c. and to precipitate the remaining metals other than iron and aluminium which remain in solution. After adjustment of the pH value if necessary the regenerated solution is used again. Bromine or iodine compounds may be used for the extraction, which is effected with the ore in a coarsely ground condition, and in the raw or roasted state. An example relates to the treatment of tailings obtained by floatation of a mispickel ore, which contain mainly iron, arsenic and sulphur, and about 1 grm. of gold per ton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB292936A GB452832A (en) | 1936-01-31 | 1936-01-31 | Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB292936A GB452832A (en) | 1936-01-31 | 1936-01-31 | Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB452832A true GB452832A (en) | 1936-08-31 |
Family
ID=9748711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB292936A Expired GB452832A (en) | 1936-01-31 | 1936-01-31 | Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB452832A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0176100A1 (en) * | 1984-09-26 | 1986-04-02 | Austria Metall Aktiengesellschaft | Hydrometallurgical process for treating electrolytic copper refinery anode slimes |
| US4666514A (en) * | 1985-01-25 | 1987-05-19 | Austria Metall Aktiengesellschaft | Hydrometallurgical process for recovering silver from copper-electrolysis anode sludge |
| WO2002053788A1 (en) * | 2000-12-29 | 2002-07-11 | Nichromet Extraction Inc. | Method for the recovery of base and precious metals by extractive chloridation |
| RU2768070C1 (en) * | 2021-02-03 | 2022-03-23 | Публичное акционерное общество "Горно-металлургическая компания "Норильский никель" | Method for processing mother solutions of platinum and palladium refining |
-
1936
- 1936-01-31 GB GB292936A patent/GB452832A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0176100A1 (en) * | 1984-09-26 | 1986-04-02 | Austria Metall Aktiengesellschaft | Hydrometallurgical process for treating electrolytic copper refinery anode slimes |
| US4666514A (en) * | 1985-01-25 | 1987-05-19 | Austria Metall Aktiengesellschaft | Hydrometallurgical process for recovering silver from copper-electrolysis anode sludge |
| WO2002053788A1 (en) * | 2000-12-29 | 2002-07-11 | Nichromet Extraction Inc. | Method for the recovery of base and precious metals by extractive chloridation |
| RU2768070C1 (en) * | 2021-02-03 | 2022-03-23 | Публичное акционерное общество "Горно-металлургическая компания "Норильский никель" | Method for processing mother solutions of platinum and palladium refining |
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