Method for treating suspensions of solid particles in water using comb like polymers
US10407324B2 · kind B2 · utility
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4References
16Claims
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Key dates
| Filing date | Apr 24, 2015 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Dec 6, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/56
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to a method for treating an aqueous suspension of solid particles, wherein at least one water-soluble polymer is added to the suspension, and wherein said polymer is obtained by polymerizing at least a non-ionic monomer, optionally at least one anionic and/or at least one cationic monomer, in the presence of a multifunctional free radical transfer agent. This method is particularly useful for the treatment of mineral tailings and especially for tailings resulting from oil sand extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.