Catalysts for hydrogenation of unsaturated dinitriles

Details Catalysts for hydrogenation of unsaturated dinitriles Catalysts for hydrogenation of unsaturated dinitriles

1981-11-30

1983-05-17

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

B01J 2108, B01J 2346

Patent

active

043839401

ABSTRACT:
Unsaturated dinitriles are hydrogenated to saturated diamines using a rhodium catalyst on a silica support having a surface area larger than 275 m.sup.2 /g, a pore volume of from about 1.0 to 1.5 mL/g and an average pore size of from about 100 to about 175 A. The supported rhodium catalyst is prepared by a method which includes the steps of contacting a silica support having the characteristics described above with a solution or dispersion of rhodium or a reducible compound of rhodium, and then subjecting the impregnated silica support to vacuum treatment.

REFERENCES:
patent: 4162262 (1979-07-01), Ellgen et al.
patent: 4186110 (1980-01-01), Jalan et al.

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