Process for the preparation of 3,5-xylenol

Details Process for the preparation of 3,5-xylenol Process for the preparation of 3,5-xylenol

1982-11-23

1984-06-05

Lone, Werren B.

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

Organic compounds

Oxygen containing

568772, 568806, C07C 3706

Patent

active

044530250

ABSTRACT:
Isophorone is converted to 3,5-xylenol in the vapor phase in the presence of a heterogeneous catalyst comprising a particular combination of multiple rare earth metals on an alumina support or one or more rare earth metals in combination with one or more transition metals and/or one or more alkali or alkaline earth metals. Particularly good results are obtained with a catalyst comprising a naturally-occurring mixture of rare earth metals known as didymium in combination with potassium and cobalt promoters.

REFERENCES:
patent: 2369196 (1945-02-01), Williams et al.
patent: 3514492 (1970-05-01), Juguin et al.
patent: 3801651 (1974-04-01), Adolphen et al.
patent: 4086282 (1978-04-01), Wattimens

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