Title:
【発明の名称】ガンマ-ブチロラクトンの生成方法
Document Type and Number:
Japanese Patent JPS63500099
Kind Code:
A
Abstract:
Gamma-butyrolactone is produced by vapour phase hydrogenolysis of an alkyl ester of a C4 dicarboxylic acid, e.g. diethyl maleate, over a reduced Cu-Cr or Cu-Zn mixed oxide catalyst. Two adiabatic hydrogenolysis zones are used. The mixture exiting the first of these zones is heated (by, for example 5C) and the resulting heated mixture is fed to the second zone in which it reequilibriates at a higher temperature to increase the butane-1,4-diol yield at the expense of butane-1,4-diol. Typical reaction conditions include use of temperatures of 190C to 260C, pressures of 3 to 30 bar, and an H2:ester molar ratio of 50:1 to 1000:1.
More Like This:
| JP2005002060 | NEW LACTONE COMPOUND AND NEW ACRYLIC ACID DERIVATIVE |
| JPH1081678 | PRODUCTION OF OPTICALLY ACTIVE FURANONE |
| JP2013527835 | Lactone production method |
Inventors:
Turner Keith
Sheriff Mohammad
Rasmel Colin
Kipax John Wilson
Carter Anthony Benjamin
Scarlett John
Reason Arthur James
Harris Norman
Sheriff Mohammad
Rasmel Colin
Kipax John Wilson
Carter Anthony Benjamin
Scarlett John
Reason Arthur James
Harris Norman
Application Number:
JP50333886A
Publication Date:
January 14, 1988
Filing Date:
June 04, 1986
Export Citation:
Assignee:
Davi-Matsuki-(London) Limited
International Classes:
C07D307/33; B01J23/86; C07B61/00; C07D307/32; C07D315/00; (IPC1-7): B01J23/86; C07D307/32
Attorney, Agent or Firm:
Nobujun Kobashi