Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1979-06-27
1981-02-24
Shine, W. J.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
B01J 2104, B01J 2372, B01J 2374
Patent
active
042526892
ABSTRACT:
A copper-iron-aluminum hydrogenation catalyst is prepared by separately and simultaneously adding dropwise to a bath of water (a) an aqueous solution of cupric, ferrous and aluminum salts and (b) an aqueous solution of alkali metal compound effective to precipitate the copper, iron and aluminum ions, and then agitating the reaction mixture at a temperature of at least 50.degree. C., at a pH of 9.5 to 11.5, for from 10 minutes to 10 hours, then recovering the precipitate and treating it to convert it to an active catalyst.
REFERENCES:
patent: 2449295 (1948-09-01), Gutzeit
patent: 2844633 (1958-07-01), Braconier et al.
patent: 3197418 (1965-07-01), Maebashi et al.
patent: 4144198 (1979-03-01), Miya et al.
Kao Soap Co. Ltd.
Shine W. J.
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