Process for the catalytic manufacture of .gamma.-butyrolactone

Details Process for the catalytic manufacture of .gamma.-butyrolactone Process for the catalytic manufacture of .gamma.-butyrolactone

1976-11-23

1978-06-20

Milestone, Norma S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30732

Patent

active

040961567

ABSTRACT:
.gamma.-BUTYROLACTONE, WHICH IS AN IMPORTANT PRELIMINARY PRODUCT FOR THE PREPARATION OF BUTANEDIOL-(1,4) AND OF PYRROLIDONE, IS MANUFACTURED BY CATALYTIC HYDROGENATION OF MALEIC ACID, MALEIC ACID ANHYDRIDE, SUCCINIC ACID, SUCCINIC ACID ANHYDRIDE, OR FUMARIC ACID, OR OF A MIXTURE OF TWO OR MORE OF THESE COMPOUNDS, USING A CATALYST CONTAINING A MIXTURE OF AN ELEMENT OF THE VIII.sup.th subgroup of the periodic system of elements or of one of its compounds with an element of the I.sup.st subgroup of the periodic system of elements or of one of its compounds. The process is highly selective, and the yields of .gamma.-butyrolactone are, therefore, excellent.

REFERENCES:
patent: 2772292 (1956-11-01), McShane et al.
patent: 3948805 (1976-04-01), Michalcyzk
patent: 4001282 (1977-01-01), Miller

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