Invention Grant
- Patent Title: Process for producing light (meth)acrylic esters
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Application No.: US15032864Application Date: 2014-10-21
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Publication No.: US09908838B2Publication Date: 2018-03-06
- Inventor: Serge Tretjak , Stephane Denis , Lionel Delais , Anne Moreliere
- Applicant: Arkema France
- Applicant Address: FR Colombes
- Assignee: ARKEMA FRANCE
- Current Assignee: ARKEMA FRANCE
- Current Assignee Address: FR Colombes
- Agency: RatnerPrestia
- Priority: FR1360541 20131029; FR1450994 20140210
- International Application: PCT/FR2014/052667 WO 20141021
- International Announcement: WO2015/063388 WO 20150507
- Main IPC: C07C67/48
- IPC: C07C67/48 ; C07C67/08 ; C07C45/52 ; C07C51/44 ; C07C51/487 ; C07C67/54 ; C07C67/58

Abstract:
The subject matter of the present invention is an improvement in the continuous production of methyl (meth)acrylate or of ethyl (meth)acrylate by direct esterification of (meth)acrylic acid with methanol or ethanol, under reaction conditions for which the acid is in excess relative to the alcohol, in particular with an acid/alcohol molar ratio of between 1.0 and 4, and under a pressure ranging from atmospheric pressure to 5 bar. The process of the invention makes it possible to minimize the formation of ethyl ethoxypropionate during the esterification reaction, and results in an improvement in the material balance, simplification of the purification train for the desired ester, and optimization of the energy balance.
Public/Granted literature
- US20160272570A1 PROCESS FOR PRODUCING LIGHT (METH)ACRYLIC ESTERS Public/Granted day:2016-09-22
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