Selective introduction of active sites for hydroxylation of benz

Details Selective introduction of active sites for hydroxylation of benz Selective introduction of active sites for hydroxylation of benz

1998-05-13

1999-11-02

Dunn, Thomas

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

Zeolite or clay, including gallium analogs

Including organic component

502 60, 502 74, 502 85, B01J 29072

Patent

active

059770082

ABSTRACT:
A zeolite catalyst, which can be used in a process for hydroxylating benzene to phenol, is treated with an aqueous solution containing ferric or ferrous ions, and is treated with an aqueous solution containing dithionate ions. The treated catalyst exhibits improved selectivity and stability in the benzene hydroxylation process.

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