Process to recover alcohol with secondary reactors for esterification of acid
US8907141B2 · kind B2 · utility
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194References
20Claims
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Key dates
| Filing date | Apr 26, 2012 |
| Grant date | Dec 9, 2014 |
| Priority date | — |
| Expiry date | Jan 21, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for recovering ethanol obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and ethyl acetate and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. Unreacted acetic acid can be reduced or removed through configurations of esterification secondary reactors. The ethanol product is recovered from the residue stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.