Title:
ヒドロキシピバリンアルデヒドおよびネオペンチルグリコールの製造法
Document Type and Number:
Japanese Patent JP5328678
Kind Code:
B2
Abstract:
The preparation of hydroxypivalaldehyde is effected by aldolizing isobutyraldehyde with formaldehyde and subsequently working up the resulting reaction effluent by distillation, wherein the reaction effluent is fed to a distillation column which is operated at a top pressure in the range from 0.5 to 1.5 bar and in which a two-stage condensation is provided in the top region, in which the vapors are first conducted into a partial condenser operated at a temperature in the range from 50 to 80° C., whose condensate is recycled at least partly into the distillation column, and in which the vapors uncondensed in the partial condenser are fed to a downstream condenser operated at a temperature in the range from −40 to +30° C., whose condensate is at least partly discharged.
Inventors:
Tilman Jilhi
Michael Steininger
Stephen Mars
Stephan Rittinger
Stephan shritter
Michael Steininger
Stephen Mars
Stephan Rittinger
Stephan shritter
Application Number:
JP2009552165A
Publication Date:
October 30, 2013
Filing Date:
February 25, 2008
Export Citation:
Assignee:
BASF SE
International Classes:
C07C45/75; C07C29/141; C07C31/20; C07C47/19; C07B61/00
Domestic Patent References:
| JP6029206B2 | ||||
| JP2005000860A | ||||
| JP2005239599A | ||||
| JP2000505103A | ||||
| JP2001506658A | ||||
| JP2004513156A |
Other References:
Tetrahedron,1992年,vol. 48, no. 12,pp. 2385-2400
Journal of American Chemical Society,1991年,vol. 113,pp. 621 - 630
Journal of American Chemical Society,1991年,vol. 113,pp. 621 - 630
Attorney, Agent or Firm:
Toshio Yano
Takuya Kuno
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard
Takuya Kuno
Takahashi
Kimihiro Hoshi
Hiroyasu Ninomiya
Einzel Felix-Reinhard