Catalyst preparation method

Details Catalyst preparation method Catalyst preparation method

1977-07-25

1979-08-07

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

423419P, 423331, B01J 2720, C01B 3124, C01B 3324

Patent

active

041637356

ABSTRACT:
Copper-magnesium silicate-carbonate catalysts of improved activity and catalyst life for use in continuous hydration of acrylonitrile to acrylamide are prepared by a novel method in which magnesium and copper are precipitated separately in a common mother liquor and the precipitate is separated and dried at 170.degree.-200.degree. C. before pelleting. Pellets made from the dried powder, when reduced and calcined for use in the hydration reaction have better combination of catalytic properties than prior art catalysts of the type.

REFERENCES:
patent: 3573228 (1971-03-01), Holmes et al.
patent: 3666407 (1972-05-01), Orlemann
patent: 3911090 (1975-10-01), Hem et al.
patent: 3928439 (1975-12-01), Dockner et al.
patent: 4049780 (1977-09-01), Neumann

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