Title:
【発明の名称】ガンマーブチロラクトンの製造方法
Document Type and Number:
Japanese Patent JP2714433
Kind Code:
B2
Abstract:
According to this process, gamma-butyrolactone is produced by liquid phase catalytic hydrogenation of maleic anhydride with hydrogen at elevated temperature and under pressure, in the presence of a catalyst containing nickel and palladium deposited on a support.
When the support material chosen is a support based on silica exhibiting a very high specific surface whose value can range from 50 m<2>/g, preferably from approximately 100 m<2>/g up to 800 m<2> and more, very high degrees of conversion are obtained, of the order of 90 to 98 mol%, together with excellent selectivities for gamma-butyrolactone, of 95 to 97 mol%.
Inventors:
Jean-Look Darons
Pierre Jacobs
Johann Martens
Paul Tusten Hoye
Ivan Banden Einde
August Van Guiseel
Pierre Jacobs
Johann Martens
Paul Tusten Hoye
Ivan Banden Einde
August Van Guiseel
Application Number:
JP10327989A
Publication Date:
February 16, 1998
Filing Date:
April 21, 1989
Export Citation:
Assignee:
Yuusebe Society Anonymous
International Classes:
B01J21/08; B01J23/89; B01J35/10; C07B61/00; C07D307/33; C07D307/32; C07D315/00; (IPC1-7): C07D307/33
Attorney, Agent or Firm:
Akira Asamura (3 outside)