Process useful in the flocculation of phosphate slimes
US4224149A · kind A · utility
18Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1979 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Apr 30, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/907
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Use of an effective amount of a precipitant or sequestrant for calcium ions improves performance of anionic polymeric carboxylic acid flocculants in flocculating phosphate slimes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.