Invention Grant
- Patent Title: Extractive distillation of crude alcohol product
- Patent Title (中): 粗酒精产物的萃取蒸馏
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Application No.: US13456559Application Date: 2012-04-26
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Publication No.: US09000232B2Publication Date: 2015-04-07
- Inventor: R. Jay Warner , Victor J. Johnston , David Lee , Adam Orosco
- Applicant: R. Jay Warner , Victor J. Johnston , David Lee , Adam Orosco
- Applicant Address: US TX Irving
- Assignee: Celanese International Corporation
- Current Assignee: Celanese International Corporation
- Current Assignee Address: US TX Irving
- Main IPC: C07C29/149
- IPC: C07C29/149 ; C07C27/04 ; C07C29/84

Abstract:
Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using an extractive distillation column. The column yields a first residue that comprises ethanol, ethyl acetate, acetic acid, and water. The first residue is separated in a second column to yield a second distillate comprising ethanol and ethyl acetate. The second distillate is then separated in a third column to yield a third distillate comprising ethyl acetate and a third residue comprising ethanol.
Public/Granted literature
- US20120277463A1 Extractive Distillation of Crude Alcohol Product Public/Granted day:2012-11-01
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