Invention Grant
- Patent Title: Method for purifying methacrylic acid
- Patent Title (中): 甲基丙烯酸的纯化方法
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Application No.: US12812258Application Date: 2009-01-13
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Publication No.: US08389762B2Publication Date: 2013-03-05
- Inventor: Udo Gropp , Stefanie Sohnemann , Guido Protzmann , Thomas Mertz
- Applicant: Udo Gropp , Stefanie Sohnemann , Guido Protzmann , Thomas Mertz
- Applicant Address: DE Darmstadt
- Assignee: Evonik Röhm GmbH
- Current Assignee: Evonik Röhm GmbH
- Current Assignee Address: DE Darmstadt
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: DE102008000787 20080320
- International Application: PCT/EP2009/050295 WO 20090113
- International Announcement: WO2009/115350 WO 20090924
- Main IPC: C07C57/065
- IPC: C07C57/065 ; C07C57/07
Abstract:
The present invention relates to a process for purifying methacrylic acid, wherein the reaction mixture obtained by a reaction of methacrylamide with water is cooled by mixing with an aqueous medium and then passed into a phase separator.The present invention further describes a system for performing the process according to the invention.
Public/Granted literature
- US20100314239A1 METHOD FOR PURIFYING METHACRYLIC ACID Public/Granted day:2010-12-16
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