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.: US14288741Application Date: 2014-05-28
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Publication No.: US09000235B2Publication Date: 2015-04-07
- Inventor: David Lee , Lincoln Sarager , Trinity Hale , Victor J. Johnston
- Applicant: Celanese International Corporation
- Applicant Address: US TX Irving
- Assignee: Celanese International Corporation
- Current Assignee: Celanese International Corporation
- Current Assignee Address: US TX Irving
- Main IPC: C07C27/04
- IPC: C07C27/04 ; C07C29/84 ; C07C29/149 ; B01D3/40 ; C07C29/147

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 residue that comprises ethanol, acetic acid, and the extractive agent. The extractive agent may be water and may be separated from the residue and returned to the extractive distillation column.
Public/Granted literature
- US20140303407A1 Extractive Distillation of Crude Alcohol Product Public/Granted day:2014-10-09
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