Cerium regeneration aid for ruthenium hydrogenation catalyst

Details Cerium regeneration aid for ruthenium hydrogenation catalyst Cerium regeneration aid for ruthenium hydrogenation catalyst

1978-10-24

1979-10-30

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252462, 260583K, 260690, C07C 8512

Patent

active

041728491

ABSTRACT:
In a ruthenium hydrogenation catalyst cerium moderates loss in catalytic activity and the physical degradation of the catalyst. In one embodiment, upon repeated regenerations during the catalytic hydrogenation of branched chain olefinically unsaturated aliphatic dinitriles, a ruthenium-cerium/Al.sub.2 O.sub.3 catalyst maintained a catalytic activity at higher levels through a series of hydrogenations and regenerations than did a catalyst containing only ruthenium.

REFERENCES:
patent: 3404098 (1968-10-01), Stiles
patent: 3518206 (1970-06-01), Sowards et al.
patent: 3679773 (1972-07-01), Kovach et al.
patent: 3794588 (1974-02-01), Stiles
patent: 3880929 (1975-04-01), Drake
patent: 3896173 (1975-07-01), Drake
patent: 4053515 (1977-10-01), Drake

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