Continuous process for producing gamma-butyrolactone by catalyti

Details Continuous process for producing gamma-butyrolactone by catalyti Continuous process for producing gamma-butyrolactone by catalyti

1976-01-12

1977-05-24

Jaisle, Cecilia M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252460, C07D30732

Patent

active

040255344

ABSTRACT:
A continuous process for producing gamma-butyrolactone by hydrogenating maleic anhydride in two stages in the presence of a catalyst composed of cobalt oxide and palladium on a support of silica. The hydrogenation is performed at a hydrogen pressure of 100 to 125 atmospheres and at a temperature of 50.degree. to 100.degree. C. in the first stage and at 190.degree. to 220.degree. C. in the second stage.

REFERENCES:
patent: 3948805 (1976-04-01), Michalczyk et al.

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