Catalytic production of butyrolactone or tetrahydrofuran

Details Catalytic production of butyrolactone or tetrahydrofuran Catalytic production of butyrolactone or tetrahydrofuran

1996-06-04

1998-08-11

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549508, C07D30758, C07D30708

Patent

active

057928754

ABSTRACT:
A process for the preparation of supported bimetallic catalyst useful for the hydrogenation of esters of dicarboxylic acids, which comprises impregnating activated alumina powder with transition metal by contacting the said solid alumina powder with an aqueous solution of a salt of a transition metal, treating the said transition metal salt impregnated alumina powder with an aqueous solution of a salt of group (IV) metal in acidic medium so as to have ratio of transition metal to group (IV) A metal in the range of 1:5 to 1:20, further treating the bimetallic impregnated alumina powder with an alkali solution followed by a solution of boron containing compound, finally washing and drying the resultant supported catalyst.

REFERENCES:
patent: 3781251 (1973-12-01), Kominami et al.
patent: 3869521 (1975-03-01), Benson
patent: 5118884 (1992-06-01), Didillon et al.
patent: 5502217 (1996-03-01), Fuchikami et al.
"Catalysis" Kirk-Othmer, ed., Concise Encyclopedia of Chemical Technology, pp. 224-225.
Deshpande, et al., "Studies on Ruthenium-Tin Boride Catalysts I Characterization" Journal of Catalysis, 121, 165-173 (1990).
Dashpande, et al., "Studies on Ruthenium-Tin Boride Catalysts. II Hydrogenation of Fatty Acid Esters to Fatty Alcohols" Journal of Catalysis, 121, 174-182 (1990).

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