Water-in-oil-in-water emulsions of hydroxamated polymers and methods for using the same
US8216534B2 · kind B2 · utility
3Cited by
15References
13Claims
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Key dates
| Filing date | Mar 3, 2011 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Mar 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and composition for flocculation and separation of suspended solids from an industrial process stream containing suspended solids is provided. The method includes the steps of adding to the stream a water-in-oil-in-water emulsion polymer in an amount effective to flocculate the suspended solids and separating the flocculated solids therefrom. The composition is a water-in-oil-in-water emulsion of a water-soluble polymer in which the continuous phase is an aqueous solution of a water-soluble salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.