发明授权
- 专利标题： Process for producing acrylic acid
- 专利标题（中）： 丙烯酸生产工艺
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申请号： US12439620申请日： 2007-08-31
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公开(公告)号： US08242308B2公开(公告)日： 2012-08-14
- 发明人: Fungau Ho , Olan S. Fruchey , Roger L. Roundy , William G. Etzkorn , Christopher T. Reeves , Mahmood Jawaid , Edmund J. Yang , Dennis W. Jewell
- 申请人： Fungau Ho , Olan S. Fruchey , Roger L. Roundy , William G. Etzkorn , Christopher T. Reeves , Mahmood Jawaid , Edmund J. Yang , Dennis W. Jewell
- 申请人地址： US PA King of Prussia
- 专利权人： Arkema Inc.
- 当前专利权人： Arkema Inc.
- 当前专利权人地址： US PA King of Prussia
- 代理商 Lynn B. Morreale
- 国际申请： PCT/US2007/077369 WO 20070831
- 国际公布： WO2008/033687 WO 20080320
- 主分类号： C07C51/42
- IPC分类号： C07C51/42
摘要：
The process for the distillation of a gas mixture comprising (meth)acrylic acid obtained from the gas-phase oxidation of at least one (meth)acrylic acid precursors is improved through the use of coupled distillation columns. In a first column, the gaseous mixture is dehydrated while in a second column, the dehydrated gaseous mixture is distilled into product, overhead and bottoms streams.
公开/授权文献
- US20090253934A1 Process for Producing Acrylic Acid 公开/授权日：2009-10-08
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