BG66104B1 - Method of exctracting gold from gravitaty concentrate - Google Patents
Method of exctracting gold from gravitaty concentrateInfo
- Publication number
- BG66104B1 BG66104B1 BG10110129A BG11012908A BG66104B1 BG 66104 B1 BG66104 B1 BG 66104B1 BG 10110129 A BG10110129 A BG 10110129A BG 11012908 A BG11012908 A BG 11012908A BG 66104 B1 BG66104 B1 BG 66104B1
- Authority
- BG
- Bulgaria
- Prior art keywords
- gold
- separation
- resulting
- magnetic
- blended
- Prior art date
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The method finds application in metallurgy of the noble metals for obtaining high purity gold. It ensures high level extraction of gold and all accompanying useful metals. The source material is subjected to multistage separation, including sifting, magnetic separation and gravity separation, and the resulting product enriched with gold is processed with concentrated hydrochloric acid for 20-30 hby continuous mixing. After separating the slag, the resulting second gold-enriched product is blended with borax and melted at 1100-1200 degrees C. The resulting black gold bullion is blended with silver, consecutively subjected to pre-electrolysis and additional processing with 64-65 percent HNO3, and after that it undergoes electrorefining. The intermediate products from the multistage separation, i.e. the coarse fraction after sifting, the magnetic fraction from the magnetic separation, and the gravity separation waste, as well as the slag resulting from the melting process, are fed for processing in the lead production cycle to extract the gold and silver contained therein.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG10110129A BG66104B1 (en) | 2008-05-09 | 2008-05-09 | Method of exctracting gold from gravitaty concentrate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG10110129A BG66104B1 (en) | 2008-05-09 | 2008-05-09 | Method of exctracting gold from gravitaty concentrate |
Publications (2)
Publication Number | Publication Date |
---|---|
BG110129A BG110129A (en) | 2008-11-28 |
BG66104B1 true BG66104B1 (en) | 2011-04-29 |
Family
ID=40328073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG10110129A BG66104B1 (en) | 2008-05-09 | 2008-05-09 | Method of exctracting gold from gravitaty concentrate |
Country Status (1)
Country | Link |
---|---|
BG (1) | BG66104B1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US156765A (en) * | 1874-11-10 | Improvement in the manufacture of paper packages | ||
US4578163A (en) * | 1984-12-03 | 1986-03-25 | Homestake Mining Company | Gold recovery process |
RU2052523C1 (en) * | 1993-07-06 | 1996-01-20 | Акционерное общество "Иргиредмет" | Schlich gold reprocessing method |
RU2099435C1 (en) * | 1996-08-23 | 1997-12-20 | Щелковский завод вторичных драгоценных металлов | Pyrometallurgical method for recovering precious metals out of gravity concentrates |
-
2008
- 2008-05-09 BG BG10110129A patent/BG66104B1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US156765A (en) * | 1874-11-10 | Improvement in the manufacture of paper packages | ||
US4578163A (en) * | 1984-12-03 | 1986-03-25 | Homestake Mining Company | Gold recovery process |
RU2052523C1 (en) * | 1993-07-06 | 1996-01-20 | Акционерное общество "Иргиредмет" | Schlich gold reprocessing method |
RU2099435C1 (en) * | 1996-08-23 | 1997-12-20 | Щелковский завод вторичных драгоценных металлов | Pyrometallurgical method for recovering precious metals out of gravity concentrates |
Also Published As
Publication number | Publication date |
---|---|
BG110129A (en) | 2008-11-28 |
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