Froth flotation process
US4394257A · kind A · utility
14Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1982 |
| Grant date | Jul 19, 1983 |
| Priority date | — |
| Expiry date | Jun 21, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the recovery of mineral values by froth flotation in an aqueous medium employing a novel frother. Frothers prepared by Michael addition between alpha, beta-unsaturated ethylenic compounds and either alcohols, amines or mercaptans or by the condensation of HCN, aldehydes/ketones with either alcoholics, amines or mercaptans have been found to be effective in the froth flotation system and capable of reducing the required collector consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.