Zeolite catalysts modified with group IIIA metal

Details Zeolite catalysts modified with group IIIA metal Zeolite catalysts modified with group IIIA metal

1982-09-29

1983-08-16

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252437, B01J 2928

Patent

active

043990592

ABSTRACT:
A zeolite catalyst composition suitable for para-selective conversion of substituted aromatic compounds, e.g., conversion of aromatic compounds to dialkylbenzene compounds rich in the 1,4-dialkylbenzene isomer. Such a composition comprises a zeolite catalyst component having a silica to alumina mole ratio of at least 12 and a constraint index of about 1 to 12, and a minor amount, e.g., at least 0.5 weight percent of a Group IIIA element, e.g., scandium, yttrium or Rare Earth elements, and optionally phosphorus, said elements being present in the form of their oxides.

REFERENCES:
patent: 3691101 (1972-09-01), Mertzweiller et al.
patent: 3709979 (1973-01-01), Chu
patent: 3965208 (1976-06-01), Butter et al.
patent: 4242233 (1980-12-01), Ball et al.

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