Invention Grant
US09309177B2 Process for preparing or recovering acetals or ketals by means of pervaporation
有权
通过渗透蒸发制备或回收缩醛或缩酮的方法
- Patent Title: Process for preparing or recovering acetals or ketals by means of pervaporation
- Patent Title (中): 通过渗透蒸发制备或回收缩醛或缩酮的方法
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Application No.: US14130683Application Date: 2012-06-29
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Publication No.: US09309177B2Publication Date: 2016-04-12
- Inventor: Thomas Clavey
- Applicant: Thomas Clavey
- Applicant Address: NL Heerlen
- Assignee: DSM IP ASSETS B.V.
- Current Assignee: DSM IP ASSETS B.V.
- Current Assignee Address: NL Heerlen
- Agency: Nixon & Vanderhye P.C.
- Priority: EP11172867 20110607
- International Application: PCT/EP2012/062753 WO 20120629
- International Announcement: WO2013/004631 WO 20130110
- Main IPC: C07C41/56
- IPC: C07C41/56 ; C07C41/58 ; B01D61/00 ; C07C41/50 ; B01D61/36
Abstract:
The process of the present invention comprises reacting an aldehyde or ketone with an alcohol in the presence of a solid acid, and removing water and methanol from the reaction product by pervaporation, characterized in that a membrane having a flux density for water of 0.04 to 2.8 kg/(hm2) is used to remove the water and another membrane having a flux density for methanol of 2.0 to 100 kg/(hm2) is used to remove the methanol.
Public/Granted literature
- US20140288333A1 PROCESS FOR PREPARING OR RECOVERING ACETALS OR KETALS BY MEANS OF PERVAPORATION Public/Granted day:2014-09-25
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