Invention Grant
US07112707B2 Method for the isolation of trimethylolpropane from a reaction mixture
有权
从反应混合物中分离三羟甲基丙烷的方法
- Patent Title: Method for the isolation of trimethylolpropane from a reaction mixture
- Patent Title (中): 从反应混合物中分离三羟甲基丙烷的方法
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Application No.: US10497522Application Date: 2002-12-06
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Publication No.: US07112707B2Publication Date: 2006-09-26
- Inventor: Tilman Sirch , Gerd Kaibel , Alexander Wartini , Matthias Dernbach
- Applicant: Tilman Sirch , Gerd Kaibel , Alexander Wartini , Matthias Dernbach
- Applicant Address: DE Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DE Ludwigshafen
- Agency: Novak Druce & Quigg LLP
- Priority: DE10160180 20011207
- International Application: PCT/EP02/13882 WO 20021206
- International Announcement: WO03/048093 WO 20030612
- Main IPC: C07C29/80
- IPC: C07C29/80 ; C07C29/82 ; C07C29/84
Abstract:
Trimethylolpropane is isolated from a reaction mixture which has been obtained by reaction of n-butyraldehyde with formaldehyde in the presence of a base and, if appropriate, hydrogenation of the resulting mixture by distilling the mixture by means of a dividing wall column or a distillation column with a precolumn or a distillation column with an after-column. The process has low capital costs and a low energy consumption and gives reduced formation of high-boiling by-products.
Public/Granted literature
- US20040267055A1 Method for the isolation of trimethylol propane from a reaction mixture Public/Granted day:2004-12-30
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