Method of separating vermiculite from the associated gangue
US4247390A · kind A · utility
28Cited by
10References
30Claims
0Family size
Inventor
Key dates
| Filing date | Oct 23, 1978 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Oct 23, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C7/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of separating vermiculite from the associated gangue is disclosed in which the ore is fed to the top of a rotating support comprising a grounded conductive underlayer and a nonconductive overlayer and the ore particles are pinned to the rotating support by ion bombardment. The gangue tends to separate first from the roll while the vermiculite particles have a greater tendency to remain pinned to the roll and can be collected as a separate fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.