Poly alkanolamine emulsion breakers
US9701791B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Aug 18, 2016 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Aug 18, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2103/365
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Poly alkanolamines formed as the reaction products of secondary or tertiary alkanolamines, C8-C24 fatty acids, and shorter chain organic acids are provided, which serve as excellent petroleum/water emulsion breakers for water-in-oil emulsions and reverse oil-in-water emulsions. The polymers are preferably prepared using a reaction mixture of triethanolamine, tall oil fatty acids, and acetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.