Froth flotation process and collector therefor
US4828687A · kind A · utility
4Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1985 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Apr 3, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A froth flotation process in which an amphoteric compound is used as a collector for oxide and salt type minerals. The amphoteric compound has the formula ##STR1## in which R is a hydrocarbon group having 4 to 18 carbon atoms; n is 0 or 1;; p is a number from 0 to 5; and R.sub.1 is a hydrocarbon group having 5 to 18 carbon atoms or the group ##STR2## in which R, n and p have the above mentioned meaning; or a salt thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.