Title:
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 JP4555475
Kind Code:
B2
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:
September 29, 2010
Filing Date:
April 21, 1999
Export Citation:
Assignee:
BASF SE
International Classes:
C07C29/136; C07B61/00; C07C29/149; C07C29/88; C07C31/20; C07D307/08; C07D307/33; C07D315/00
Domestic Patent References:
| JP57156425A | ||||
| JP8073386A | ||||
| JP2000510837A | ||||
| JP64070422A | ||||
| JP5238971A | ||||
| JP2002512996A | ||||
| JP2001523657A | ||||
| JP2002507587A | ||||
| JP2001523656A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel