Solid-liquid separation using phase transitional N-substituted pyrrolidones
US6051143A · kind A · utility
2Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1997 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Nov 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D3/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is disclosed for flocculating particles in a liquid suspension by mixing the suspension with a pyrrolidone having alkyl, alkenyl, aryl, alkylaryl, and arylalkyl radicals from 1 to 18 carbon atoms to form a mixture at a temperature above a minimum flocculation temperature for the mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.