Polymer-based emulsion breaking methods
US9662596B2 · kind B2 · utility
1Cited by
3References
10Claims
0Family size
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Key dates
| Filing date | Oct 30, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Apr 3, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/68
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for breaking emulsions includes applying a polymer mixture to an emulsion. The emulsion can be energized, such as through centrifugation or vibration. In particular, the polymer mixture can be in liquid form. The polymer mixture includes first and second liquid polymer, the second liquid polymer being less hydrophilic than the first liquid polymer. Example polymer useful as the first or second liquid polymers includes polyether. In a water-in-oil emulsion, the less hydrophilic polymer can preferentially reside within the oil phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.