3-acrylamido-3-methylbutanoic acid copolymers as selective coal flocculants
US5296006A · kind A · utility
5Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Nov 20, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Nov 20, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
3-acrylamido-3-methylbutanoic acid copolymers of acrylamide or acrylic acid are selective flocculant for coal present in coal refuse slurries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.