Use of a Lewis donor solvent to purify a feedstock that contains ethanol, acetaldehyde, and impurities
US10351497B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | May 9, 2017 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | May 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention pertains to the use of a solvent that comprises a Lewis donor compound that is selected from the group made up of unsaturated fatty acids that have between 12 and 18 carbon atoms, phosphate esters that have between 12 and 30 carbon atoms, and mixtures thereof to separate the impurities from a feedstock that contains ethanol, acetaldehyde, and impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.