04155919 is referenced by 10 patents and cites 8 patents.

Process for the catalytic hydrogenolysis of maleic anhydride to give 1,4-butanediol and tetrahydrofuran in a single-stage operation by means of hydrogen under heat and pressure, in the presence of a suspension of a reduced solid catalyst, which contains as catalytically active elements Ni in association with Mo and/or W and optionally with Zr and/or Nb, having the following essential characteristics: (I) double oxidizing treatment of the solid catalyst in two stages before its reduction, and (II) conducting the hydrogenolysis of maleic anhydride at a temperature of from 170.degree. to 215.degree. C. under a hydrogen pressure below about 200 bars, in a reaction medium which contains gamma-butyrolactone, for a time such that the amount of gamma-butyrolactone in the final reaction medium is substantially equal to that present in the initial reaction medium.

Title
Process for the production of 1,4-butanediol and tetrahydrofuran
Application Number
5/853566
Publication Number
4155919
Application Date
November 21, 1977
Publication Date
May 22, 1979
Inventor
Willy Couteau
Brussels
BE
Jean Ramioulle
Bierghes
BE
Agent
Wenderoth Lind & Ponack
Assignee
U C B Societe Anonyme
BE
IPC
C07C 27/04
C07D 307/08
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