Active zeolite catalysts of improved stability

Details Active zeolite catalysts of improved stability Active zeolite catalysts of improved stability

1983-10-06

1985-06-11

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

Zsm type

502 71, 502 85, B01J 2928, B01J 3710

Patent

active

045229295

ABSTRACT:
A zeolite of improved stability for use in acid-catalyzed reactions is prepared by mildly presteaming the catalyst under controlled conditions of temperature, time, and steam partial pressure. The resulting catalyst retains nearly the same activity as that of a fresh unsteamed catalyst.

REFERENCES:
patent: 4247388 (1981-01-01), Banta et al.
patent: 4326994 (1982-04-01), Haag et al.

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