Invention Grant
- Patent Title: Process for producing (meth)acrylic acid
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Application No.: US15556308Application Date: 2016-03-04
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Publication No.: US10239816B2Publication Date: 2019-03-26
- Inventor: Sandeep Jain , Christian Lacroix , Michel Jean Fauconet
- Applicant: Arkema France
- Applicant Address: FR Colombes
- Assignee: Arkema France
- Current Assignee: Arkema France
- Current Assignee Address: FR Colombes
- Agent Lynn B. Morreale
- Priority: FR1552049 20150312
- International Application: PCT/FR2016/050501 WO 20160304
- International Announcement: WO2016/142608 WO 20160915
- Main IPC: B01D3/10
- IPC: B01D3/10 ; B01D5/00 ; C07C51/25 ; C07C51/44 ; C07C57/04
Abstract:
The invention is directed to a process for recovering/purifying (meth)acrylic acid which does not use azeotropic solvent and is based on the use of two columns for purifying a reaction mixture comprising (meth)acrylic acid. The process according to the invention includes a dry vacuum pump condensation system, which makes it possible to reduce the amount of final aqueous discharges.
Public/Granted literature
- US20180079706A1 IMPROVED PROCESS FOR PRODUCING (METH)ACRYLIC ACID Public/Granted day:2018-03-22
Information query
