Method for making pellet type catalyst

Details Method for making pellet type catalyst Method for making pellet type catalyst

1976-04-05

1977-09-27

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252465, 252466J, 252466PT, 252463, 4232132, 4232135, B01J 2104, B01J 2320, B01J 2324, B01J 2372, B01J 2340, B01J 2374

Patent

active

040510727

ABSTRACT:
A method for making improved pellet type catalysts utilizing a support material having relatively high alkali metal content, comprising the steps of grinding the support material to the desired size, forming the pellet into the desired shape and size, calcining the pellet to obtain the desired surface area, soaking the calcined pellet in a dilute acid for a short period of time to form the alkali metal salt of the acid to a controlled depth inward from the surface of the pellet, and impregnating the pellet with the desired catalytically active metallic material after draining the acid wash solution, the depth of penetration of the catalytic material being limited to the depth treated by the acid wash.

REFERENCES:
patent: 3467602 (1969-09-01), Koester
patent: 3565830 (1971-02-01), Keith et al.
patent: 3679605 (1972-07-01), Sanford et al.
patent: 3856706 (1974-12-01), Harrison et al.
patent: 3928238 (1975-12-01), Koberstein et al.
patent: 3933685 (1976-01-01), Madderra et al.
patent: 3957690 (1976-05-01), Bobolev et al.

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