BG108718A - Method for precious metals extraction from sulphide concentrates and secondary materials - Google Patents
Method for precious metals extraction from sulphide concentrates and secondary materialsInfo
- Publication number
- BG108718A BG108718A BG108718A BG10871804A BG108718A BG 108718 A BG108718 A BG 108718A BG 108718 A BG108718 A BG 108718A BG 10871804 A BG10871804 A BG 10871804A BG 108718 A BG108718 A BG 108718A
- Authority
- BG
- Bulgaria
- Prior art keywords
- precious metals
- extraction
- solution
- concentrates
- silver
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The method is used for the extraction of gold and silver from sulphide concentrates such as pyrites, arsenopyrites and copper concentrates, as well as from secondary precious metals-containing metals. It reduces the time of precious metals extraction from the solution at higher rate of extraction of the valuable components. The method comprises treatment in an ammonium thiosulphate in the presence of cupric ions, free ammonia and oxygen until precious metals-containing thiosulphate solution is produced. The precious metals-containing material is simultaneously subjected to electrochemical treatment with 1 to 5 electrode modules, submerged in the thiosulphate solution, each of which comprises from 4 to 10 anodes, and the cathodes are by one less, respectively. The current density is from 4to 16 mA/cm?. The surface ratio between anode and cathode is from 3:1 to 8:1. The electrodes are made of copper, nickel, titanium, silver or a combination thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG108718A BG65703B1 (en) | 2004-05-12 | 2004-05-12 | Method for precious metals extraction from sulphide concentrates and secondary materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG108718A BG65703B1 (en) | 2004-05-12 | 2004-05-12 | Method for precious metals extraction from sulphide concentrates and secondary materials |
Publications (2)
Publication Number | Publication Date |
---|---|
BG108718A true BG108718A (en) | 2005-12-30 |
BG65703B1 BG65703B1 (en) | 2009-07-31 |
Family
ID=35614605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG108718A BG65703B1 (en) | 2004-05-12 | 2004-05-12 | Method for precious metals extraction from sulphide concentrates and secondary materials |
Country Status (1)
Country | Link |
---|---|
BG (1) | BG65703B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BG66040B1 (en) * | 2005-03-18 | 2010-11-30 | Владко ПАНАЙОТОВ | Process for precious metals extraction from sulphide concentrates |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4269922A (en) * | 1979-03-12 | 1981-05-26 | Xerox Corporation | Positive toners containing long chain hydrazinium compounds |
US4369061A (en) * | 1979-12-28 | 1983-01-18 | Kerley Jr Bernard J | Recovery of precious metals from difficult ores |
-
2004
- 2004-05-12 BG BG108718A patent/BG65703B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
BG65703B1 (en) | 2009-07-31 |
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