Invention Grant
- Patent Title: Process for preparing vinyl acetate
- Patent Title (中): 乙酸乙烯酯的制备方法
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Application No.: US11261319Application Date: 2005-10-28
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Publication No.: US07202377B2Publication Date: 2007-04-10
- Inventor: Bernd Rinne , Stefan Hess , Johann Stamm , Berthold Nuber
- Applicant: Bernd Rinne , Stefan Hess , Johann Stamm , Berthold Nuber
- Applicant Address: DE
- Assignee: Celanese Chemicals Europe GmbH
- Current Assignee: Celanese Chemicals Europe GmbH
- Current Assignee Address: DE
- Agent Charles A. Muserlian
- Priority: DE102004053184 20041104
- Main IPC: C07C67/05
- IPC: C07C67/05 ; G01N35/08

Abstract:
The present invention relates to a method of saturating ethylene-containing gases with acetic acid before they are fed into a vinyl acetate reactor, in which the acetic acid recovered in the vinyl acetate process is introduced into a column having a countercurrent stripping section and a rectification section and ethylene-containing gas is supplied via the bottom, wherein the liquid taken off at the bottom of the column is divided into two substreams and one substream is pumped back into the column with maintenance of a minimum pumped circulation required for sufficient saturation with acetic acid.
Public/Granted literature
- US20060094896A1 Process for preparing vinyl acetate Public/Granted day:2006-05-04
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