Coagulant for twin belt filter presses
US5518634A · kind A · utility
17Cited by
24References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1995 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | May 23, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/56
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A chemically assisted process for dewatering mining waste solids on mechanical separation devices with at least one flocculant and at least one coagulant. It comprises using as the coagulant a diallyldimethyl ammonium chloride copolymer which contains from 3-25 mole % of acrylamide and which has been cross linked with from 0.01 to 0.5 mole % of triallyl amine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.