Verfahren zur Herstellung von Hydroxyverbindungen durch Hydrierung von sauerstoffenthaltenden Verbindungen

Prepn. of alcohols and diols by hydrogenation of a corresponding unsatd. cpd. selected from (di)esters and lactones comprises: (a) having an hydrogenation zone contg. a granular Cu-contg. ester hydrogenation catalyst; (b) supplying to the zone a vaporous feed stream (A); (c) maintaining a temp. of 1...

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Main Authors WOOD, MICHAEL ANTHONY, MIDDLESBROUGH, CLEVELAND TS7 0QS, GB, TUCK, MICHAEL WILLIAM MARSHALL, LONDON SW16 1QL, GB, SCARLETT, JOHN, SPENNYMOOR, COUNTY DURHAM DL16 7JZ, GB
Format Patent
LanguageGerman
Published 24.09.1998
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:Prepn. of alcohols and diols by hydrogenation of a corresponding unsatd. cpd. selected from (di)esters and lactones comprises: (a) having an hydrogenation zone contg. a granular Cu-contg. ester hydrogenation catalyst; (b) supplying to the zone a vaporous feed stream (A); (c) maintaining a temp. of 150-350 [deg]C and a pressure of 150-2000 psia in the zone; (d) recovering a reaction prod. stream of alcohol or diol; (e) supplying to the zone a stream of H2-contg. gas, which is free from the unsatd. cpd., at a reactivation temp. and for sufficient time to reactivate the catalyst. (A) contains a H2-contg. gas and 1-4C alkyl esters of 9-22C alkylcarboxylic acids, di(1-4C) diesters of 4-16C dicarboxylic acids, gamma-butyrolactone or epsilon-caprolactone. Also claimed are the following: (1) a process for reactivating a partially deactivated Cu-contg. ester hydrogenation catalyst; and (2) a further process for reactivating a partially deactivated Cu-contg. ester hydrogenation catalyst.
Bibliography:Application Number: DE19946009763T