Method for producing gamma-butyrolactone

The present invention relates to a process for preparing unsubstituted or C1-C4-alkyl-substituted gamma-butyrolactone by catalytic hydrogenation of maleic acid and/or its derivatives in the presence of chromium-free catalyst comprising from 10 to 80% by weight of copper oxide and from 10 to 90% by w...

Full description

Saved in:
Bibliographic Details
Main Author PINKOS ROLF,FISCHER ROLF-HARTMUTH,ROESCH MARKUS,BOTTKE NILS,SCHLITTER STEPHAN,HESSE MICHAEL,WECK ALEXANDER,WINDECKER GUNTHER,HEYDRICH GUNNAR
Format Patent
LanguageEnglish
Published 02.05.2007
Subjects
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
Online AccessGet full text

Cover

More Information
Summary:The present invention relates to a process for preparing unsubstituted or C1-C4-alkyl-substituted gamma-butyrolactone by catalytic hydrogenation of maleic acid and/or its derivatives in the presence of chromium-free catalyst comprising from 10 to 80% by weight of copper oxide and from 10 to 90% by weight of at least one catalyst support selected from the group consisting of silicon dioxide, titanium dioxide, hafnium dioxide, magnesium silicate, activated carbon, silicon carbide, zirconium dioxide and alpha-aluminum oxide.
Bibliography:Application Number: CN20038008965