Sequential hydrogenation-oxidation-hydrogenation of rhodium and

Details Sequential hydrogenation-oxidation-hydrogenation of rhodium and Sequential hydrogenation-oxidation-hydrogenation of rhodium and

1974-12-19

1976-06-29

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252416, 260 2EP, 260 47EP, 260348R, B01J 2396, C07D30100

Patent

active

039666360

ABSTRACT:
A process for the regeneration of a catalyst containing a metal of the group consisting of rhodium and ruthenium employed in the hydrogenation of an organic compound possessing at least one carbon-to-carbon bond unsaturation in the presence of a methylene dichloride solvent is taught whereby the catalyst is regenerated after deactivation by contacting the deactivated catalyst first with a hydrogen-containing gas then with an oxygen-containing gas and finally with a hydrogen-containing gas.

REFERENCES:
patent: 3011967 (1961-12-01), Schmitkons et al.
patent: 3117076 (1964-01-01), Brennan et al.
patent: 3150192 (1964-09-01), Rylander et al.
patent: 3336241 (1967-08-01), Shokal et al.
patent: 3400073 (1968-09-01), Schwarzenbek et al.
patent: 3673109 (1972-06-01), Georgescu et al.
patent: 3790532 (1974-02-01), Fukutani et al.

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