Title:
【発明の名称】1,4-ブタンジオール、テトラヒドロフランおよびγ-ブチロラクトンの混合物の製造方法
Document Type and Number:
Japanese Patent JP2002512993
Kind Code:
A
Abstract:
In a process for preparing 1,4-butanediol, tetrahydrofuran and gamma-butyrolactone by oxidation of butane to give a product stream comprising maleic anhydride, absorption of maleic anhydride from the product stream using a high-boiling alcohol to give a liquid absorption product comprising monoesters and diesters of maleic acid and also high-boiling alcohol, after-esterification of the liquid absorption product and subsequent hydrogenation of the after-esterified product in the liquid phase, the high-boiling alcohol is a polyhydric alcohol having a boiling point at atmospheric pressure of above 233° C. and the after-esterified product has an acid number of less than 30 mg KOH/g and a water content of less than 1% by weight.
Inventors:
Rolf Fisher
Gerd Kybel
Rolf pin course
Ralph-Thomas Lane
Gerd Kybel
Rolf pin course
Ralph-Thomas Lane
Application Number:
JP2000545815A
Publication Date:
May 08, 2002
Filing Date:
April 21, 1999
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
C07B61/00; C07C29/136; C07C29/149; C07C29/88; C07C31/20; C07D307/08; C07D307/33; C07D315/00; (IPC1-7): C07C29/136; C07C29/88; C07C31/20; C07D307/08; C07D307/33
Domestic Patent References:
| JPS57156425A | 1982-09-27 | |||
| JPH0873386A | 1996-03-19 | |||
| JP2000510837A | 2000-08-22 | |||
| JPS6470422A | 1989-03-15 | |||
| JPH05238971A | 1993-09-17 | |||
| JP2002512996A | 2002-05-08 | |||
| JP2001523657A | 2001-11-27 | |||
| JP2002507587A | 2002-03-12 | |||
| JP2001523656A | 2001-11-27 | |||
| JPS57156425A | 1982-09-27 | |||
| JPH0873386A | 1996-03-19 | |||
| JP2000510837A | 2000-08-22 | |||
| JPS6470422A | 1989-03-15 | |||
| JPH05238971A | 1993-09-17 | |||
| JP2002512996A | 2002-05-08 | |||
| JP2001523657A | 2001-11-27 | |||
| JP2002507587A | 2002-03-12 | |||
| JP2001523656A | 2001-11-27 |
Attorney, Agent or Firm:
Toshio Yano (4 outside)