06008384 is referenced by 22 patents and cites 16 patents.

An improved two step (dual stage catalysis) aqueous hydrogenation process and a novel trimetallic hydrogenation catalysts consisting essentially of highly dispersed, reduced ruthenium and rhenium metals in the presence of a third metal tin on carbon support particular useful in the second stage of the process. Such process and catalyst exhibit high conversion rates in aqueous solution hydrogenation of hydrogenatable precursors (e.g., maleic acid, succinic acid, corresponding esters, .gamma.-butyrolactone, etc.) to tetrahydrofuran, .gamma.-butyrolactone, 1,4-butanediol and mixtures thereof wherein the relative molar ratio of 1,4-butanediol to tetrahydrofuran products being produced can be controlled.

Title
Method and Ru,Re,Sn/carbon catalyst for hydrogenation in aqueous solution
Application Number
9/33992
Publication Number
6008384
Application Date
March 3, 1998
Publication Date
December 28, 1999
Inventor
Richard Thomas Stimek
Laplace
LA, US
Jo Ann Theresa Schwartz
Chadds Ford
PA, US
Daniel Campos
Wilmington
DE, US
Richard Edmond Bockrath
Wilmington
DE, US
Assignee
E I du Pont de Nemours and Company
DE, US
IPC
C07C 31/20
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