Method of catalyst manufacture

Details Method of catalyst manufacture Method of catalyst manufacture

1974-12-16

1976-07-13

McCarthy, Helen M.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431C, 252466PT, 252466B, 252473, B01J 3102, B01J 3112

Patent

active

039692701

ABSTRACT:
A method of impregnating a catalytic component on a carrier material. The carrier material is immersed in an impregnating solution containing a catalytic component and a polybasic carboxylic acid, with a sulfur-containing carboxylic acid being subsequently added to the solution whereby the catalytic component is dispersed in a subsurface layer on the carrier material and penetration beyond the desired subsurface layer is substantially obviated. Prior to calcining, the impregnated carrier material is further impregnated with an alkaline earth metal salt of an organic acid, and the solution evaporated to dryness in contact with the impregnated carrier material.

REFERENCES:
patent: 3367888 (1968-02-01), Hoekstra
patent: 3409390 (1968-11-01), Hoekstra
Hackh's Chemical Dictionary-4th Ed. McGraw-Hill (1969) pp. 78-79 and 528-529.

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