Invention Grant
- Patent Title: Method for improving the color number of trimethylolpropane
- Patent Title (中): 改善三羟甲基丙烷颜色数量的方法
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Application No.: US13388199Application Date: 2010-08-06
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Publication No.: US08686197B2Publication Date: 2014-04-01
- Inventor: Ulrich Notheis , Hans-Dieter Gerriets , Michael Friederich
- Applicant: Ulrich Notheis , Hans-Dieter Gerriets , Michael Friederich
- Applicant Address: DE Cologne
- Assignee: LANXESS Deutschland GmbH
- Current Assignee: LANXESS Deutschland GmbH
- Current Assignee Address: DE Cologne
- Agent Nicanor A. Kohncke
- Priority: EP09167480 20090807
- International Application: PCT/EP2010/061459 WO 20100806
- International Announcement: WO2011/015644 WO 20110210
- Main IPC: C07C29/141
- IPC: C07C29/141 ; C07C29/74
Abstract:
The present invention relates to a method for producing trimethylolpropane having a low color number by processing a raw reaction solution obtained according to the inorganic Cannizarro process while adhering to precisely defined pH values.
Public/Granted literature
- US20120178973A1 Method for improving the color number of trimethylolpropane Public/Granted day:2012-07-12
Information query
