Metals recovery by flotation
US4946585A · kind A · utility
3Cited by
10References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Sep 18, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Collector compositions for use in froth flotation processes for the beneficiation of gold and silver values from base metal sulfide ores are disclosed. The collector compositions comprise at least one mercaptobenzothiazole compound selected from compounds of the formula: ##STR1## wherein R is a C.sub.1 -C.sub.8 alkyl or a C.sub.2 -C.sub.8 alkoxy radical. The use of the substituted mercaptobenzothiazole collectors provides excellent metallurgical recoveries of gold and silver values in froth flotation processes conducted over a broad range of pH conditions including acid, neutral and mildly alkaline pH.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.