Catalytic composite and method of manufacture

Details Catalytic composite and method of manufacture Catalytic composite and method of manufacture

1977-04-11

1978-08-15

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

260672T, B01J 2906, C07C 300, C07C 358

Patent

active

041070860

ABSTRACT:
A catalytic composite of improved activity and a method of manufacture is disclosed. The catalytic composite is particularly effective with respect to the transalkylation of toluene. The catalytic composite comprises a zeolite of the mordenite crystal structure in from about a 1:3 to about a 3:1 weight ratio with a refractory inorganic oxide. The catalytic composite is characterized by a method of preparation which comprises subjecting zeolite of the mordenite crystal structure, with a sodium content of less than about 5 wt. % as Na.sub.2 O, to an aqueous ammoniacal treatment at a pH of at least about 9.5, and thereafter admixing said zeolite with said refractory inorganic oxide.

REFERENCES:
patent: 3531397 (1970-09-01), Michalko
patent: 3781199 (1973-12-01), Ward
patent: 3794598 (1974-02-01), Schlaffer
patent: 4039479 (1977-08-01), Gembicki et al.

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