发明申请
US20050115590A1 Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof
有权
用于清洁含有（甲基）丙烯酸和/或其酯的液体的精馏塔的柱的方法
- 专利标题： Method for cleaning plate columns used for rectifying liquids containing (meth)acrylic acid and/or the esters thereof
- 专利标题（中）： 用于清洁含有（甲基）丙烯酸和/或其酯的液体的精馏塔的柱的方法
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申请号： US10505163申请日： 2003-03-04
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公开(公告)号： US20050115590A1公开(公告)日： 2005-06-02
- 发明人: Juergen Schroeder , Klaus Muller-Engel , Volker Schliephake , Ulrich Hammon , Volker Diehl , Ulrich Jager
- 申请人： Juergen Schroeder , Klaus Muller-Engel , Volker Schliephake , Ulrich Hammon , Volker Diehl , Ulrich Jager
- 优先权： DE10211273.8 20020313
- 国际申请： PCT/EP03/02186 WO 20030304
- 主分类号： B08B9/08
- IPC分类号： B08B9/08 ; C07C51/44 ; C07C57/07 ; C07C67/54 ; C07C69/54 ; B08B3/00
摘要：
In process for cleaning tray columns which are used for the purposes of rectifiying liquids comprising (meth)acrylic compounds, a basic liquid is conveyed downward through the tray column and a gas is passed through the column in countercurrent to the basic liquid at an average gas phase differential pressure over all trays of at least 0.5 mbar/tray.
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