Binderless zeolite catalysts, production thereof and catalytic r

Details Binderless zeolite catalysts, production thereof and catalytic r Binderless zeolite catalysts, production thereof and catalytic r

1988-04-13

1990-12-11

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

423328, B01J 2906, C10B 3328

Patent

active

049771205

ABSTRACT:
The binderless zeolite of this invention is comprised more than 90% of crystalline aluminosilicate which is produced by crystalize a binder contained in extrudate obtained by molding a mixture of crystalline aluminosilicate and binder of silica-alumina. This binderless zeolite can improve it's catalytic activity without weaken the strength of the extrudate, since a so-called secondary pores also act as catalyst. Especially, when more than 50% of TSZ zeolite is contained, the catalytic ability of binderless zeolite is so excellent that it is preferably used as the catalyst for selective cracking of n-parafins or alkylation of aromatics using alkylation agents such as alcohols and olefins. Excellent binderless zeolite can be obtained by subjecting extrudate, formed by molding a mixture of about from 30 to 70% by weight of at least one member selected from crystalline aluminosilicate, silica alumina xerogel or hydrothermally treated silica alumina xerogel, and from 70 to 30% by weight of silica alumina gel containing from 2 to 10% by weight of alumina, under hydrothermal conditions.

REFERENCES:
patent: 3119660 (1964-01-01), Howell et al.
patent: 3394989 (1968-07-01), Drost
patent: 3472617 (1969-10-01), McDaniel et al.
patent: 3966644 (1976-06-01), Gustafson
patent: 4444738 (1984-04-01), Suzuki et al.

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