Process for removing impurities from kaolin clays
US5891326A · kind A · utility
6Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | Dec 8, 2017 |
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.