Process for removing impurities from kaolin clays
US5522986A · kind A · utility
18Cited by
12References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1995 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Mar 3, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Colored impurities are removed from kaolin clay by an improved flotation process in which a blend of a fatty acid compound and a hydroxamate compound is used as a collector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.