Catalyst for hydrogenating anthraquinones

Details Catalyst for hydrogenating anthraquinones Catalyst for hydrogenating anthraquinones

1976-06-25

1977-12-06

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

423588, B01J 2104, B01J 2344, B01J 2358

Patent

active

040615987

ABSTRACT:
A palladium-on-alumina catalyst having high activity and long life and which gives low anthraquinone usage in the cyclic anthraquinone process for making H.sub.2 O.sub.2 is produced by impregnating the alumina under conditions such that the pore surfaces are rendered alkaline and the rate of diffusion of catalytic metal into the pores is controlled.

REFERENCES:
patent: 2657980 (1953-11-01), Sprauer
patent: 3615207 (1971-10-01), Lee

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