Process for the preparation of gamma-butyrolactone

Details Process for the preparation of gamma-butyrolactone Process for the preparation of gamma-butyrolactone

1992-07-16

1993-05-11

Ivy, C. Warren

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30728

Patent

active

052102297

ABSTRACT:
Gamma-butyrolactone is prepared by catalytic dehydrogenation of 1,4-butanediol in a gaseous phase in the presence of a catalyst comprising copper, chromium, and manganese and/or barium. Improvement is in that the catalyst further contains sodium and/or potassium, whereby formation of by-products is suppressed and high yield, high selectivity and prolonged catalyst life are attained.

REFERENCES:
patent: 3374184 (1968-03-01), McEvoy et al.
patent: 4356310 (1982-10-01), Brima
patent: 5110954 (1992-05-01), Bellis

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