发明授权
- 专利标题: Method for production of acrylic acid
- 专利标题(中): 丙烯酸生产方法
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申请号: US10607767申请日: 2003-06-27
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公开(公告)号: US07332624B2公开(公告)日: 2008-02-19
- 发明人: Takeshi Nishimura , Yukihiro Matsumoto , Kenji Sanada , Harunori Hirao
- 申请人: Takeshi Nishimura , Yukihiro Matsumoto , Kenji Sanada , Harunori Hirao
- 申请人地址: JP Osaka
- 专利权人: Nippon Shokubai Co., Ltd.
- 当前专利权人: Nippon Shokubai Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: Mathews, Shepherd, McKay & Bruneau, PA
- 优先权: JP2002-206707 20020716
- 主分类号: C07C51/16
- IPC分类号: C07C51/16 ; C07C51/42
摘要:
A method for the production of acrylic acid comprises (i) a step for introducing a polymerization inhibitor to a stage other than a stage for supplying a raw material and a stage for supplying a reflux of said distilling column or (ii) a step for supplying the acrylic acid recovered by thermally decomposing said oligomer to said stage for dehydration. Thus, the present invention enjoys effective utilization of acrylic acid and exalts the efficiency of production.
公开/授权文献
- US20040015014A1 Method for production of acrylic acid 公开/授权日:2004-01-22
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