Title:
PRODUCTION 0F GAMMA-BUTYROLACTONE
Document Type and Number:
Japanese Patent JP3095293
Kind Code:
B2
Abstract:
PURPOSE: To provide a process for producing γ-butyrolactone in high efficiency at a low cost while enabling the recycled use of unreacted substance.
CONSTITUTION: γ-Butyrolactone is produced by the vapor-phase catalytic dehydrogenation of 1,4-butanediol in the presence of a catalyst. The reaction is carried out in the presence of hydrogen and a catalyst containing copper and chromium. Produced γ-butyrolactone is separated from the reaction mixture and the remaining part is recycled as a raw material.
Inventors:
Tatsumi Ichiki
Kenji Kobayashi
Suzuki Sadakatsu
Hiroshi Ueno
Kenji Kobayashi
Suzuki Sadakatsu
Hiroshi Ueno
Application Number:
JP24856092A
Publication Date:
October 03, 2000
Filing Date:
August 25, 1992
Export Citation:
Assignee:
Tonen Chemical Co., Ltd.
International Classes:
C07B61/00; C07D307/33; C07D315/00; B01J23/86; (IPC1-7): C07D307/33; B01J23/86
Domestic Patent References:
| JP3232875A | ||||
| JP61246173A | ||||
| JP3232874A | ||||
| JP58167532A | ||||
| JP61197534A |
Attorney, Agent or Firm:
Mitsuo Matsui