Process for the isomerization of o-, m- and/or p-toluidine

Details Process for the isomerization of o-, m- and/or p-toluidine Process for the isomerization of o-, m- and/or p-toluidine

1985-05-31

1988-01-19

Warren, Charles F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

564424, C07C 8524, C07C 8756

Patent

active

047205830

ABSTRACT:
The invention relates to a process for the isomerization of o-, m- or p-toluidine, or of a mixture of them, on a zirconium-containing zeolite catalyst of the pentasil type. Catalysts of this type are distinguished by particularly high activity and a long useful life. The invention particularly relates to the preparation of m-toluidine by isomerization of o- and/or p-toluidine on zirconium-containing zeolite catalysts of the pentasil type.

REFERENCES:
patent: 4480128 (1984-10-01), Arpe et al.
patent: 4650915 (1987-03-01), Arpe et al.

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