Vermiculite flotation promoter
US4710285A · kind A · utility
0Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1986 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Dec 4, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved method for the froth flotation recovery and/or grade of vermiculite from vermiculite containing rock and clay. It uses a composition comprising oil and between 2-60% by weight of an alkyl phenol formaldehyde condensation product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.