Title:
反応混合物からトリメチロールプロパンを単離する方法
Document Type and Number:
Japanese Patent JP3923472
Kind Code:
B2
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.
Inventors:
Tilman Jilhi
Gerd Kybel
Alexander Valtini
Matthias dernbach
Gerd Kybel
Alexander Valtini
Matthias dernbach
Application Number:
JP2003549288A
Publication Date:
May 30, 2007
Filing Date:
December 06, 2002
Export Citation:
Assignee:
BASF Aktiengesellschaft
International Classes:
C07C29/38; C07B61/00; C07C29/141; C07C29/80; C07C31/22
Domestic Patent References:
| JP2000191568A | ||||
| JP60112729A | ||||
| JP59142801A |
Foreign References:
| WO2001047847A1 | ||||
| US2471134 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
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