Alkylation process using dual metal ultrastable Y zeolite

Catalyst – solid sorbent – or support therefor: product or process – Zeolite or clay – including gallium analogs – And additional al or si containing component

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502 73, B01J 2908

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active

051458179

ABSTRACT:
A process for the alkylation/transalkylation of benzene is improved by the use of a catalyst prepared by exchanging a sodium Y zeolite with an ammonium salt to replace from about 40 percent to about 90 percent of the sodium ions with ammonium ions; calcining the resulting ammonium-sodium zeolite in steam under conditions sufficient to reduce the unit cell size to about 24.48 to 24.60 angstroms; contacting the calcined catalyst with a rare earth salt and an aluminum salt either simultaneously or sequentially; and calcining the catalyst a second time in the absence of steam.

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