Dadmac/vinyl trialkoxysilane copolymers for dewatering in the mining industry
US5622647A · kind A · utility
28Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | May 22, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03D2203/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for dewatering coal tailings, clean coal products and mineral slurries, as well as for the clarification of water contained in coal refuse slurries, employing a copolymer of diallyldimethlylammonium halide and a vinyl alkoxysilane, which is preferably a copolymer of diallyldimethylammonium chloride and vinyltrimethoxysilane as a coagulant is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.