发明公开
- 专利标题： Process for manufacturing high purity methacrylic acid
- 专利标题（中）： 制造高纯度甲基丙烯酸的方法
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申请号： EP03252664.2申请日： 2003-04-26
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公开(公告)号： EP1361203A2公开(公告)日： 2003-11-12
- 发明人: Briegel, Keith Frederick , Day, James Clarence , Decourcy, Michael Stanley , Ebert, Donald Alan , Juliette, Jamie Jerrick John
- 申请人： ROHM AND HAAS COMPANY
- 申请人地址： 100 Independence Mall West Philadelphia, Pennsylvania 19106-2399 US
- 专利权人： ROHM AND HAAS COMPANY
- 当前专利权人： ROHM AND HAAS COMPANY
- 当前专利权人地址： 100 Independence Mall West Philadelphia, Pennsylvania 19106-2399 US
- 代理机构： Kent, Venetia Katherine
- 优先权： US376710P 20020501
- 主分类号： C07C51/44
- IPC分类号： C07C51/44 ; C07C57/04 ; B01D3/14
摘要：
A process is provided herein for the high yield production of high purity glacial methacrylic acid ("HPMAA") that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less. This improved process comprises providing a crude MAA stream and purifying the crude methacrylic acid stream in a series of successive distillation steps
公开/授权文献
- EP1361203B1 Process for manufacturing high purity methacrylic acid 公开/授权日：2012-08-08
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