Process for the manufacture of resorcinols from .delta.-ketocarb

Details Process for the manufacture of resorcinols from .delta.-ketocarb Process for the manufacture of resorcinols from .delta.-ketocarb

1979-06-06

1981-02-10

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3700

Patent

active

042503361

ABSTRACT:
Resorcinols are prepared by converting .delta.-ketocarboxylic acid esters in the gaseous phase at a temperature from 250.degree. to 500.degree. C. in the presence of hydrogen at a catalyst. The catalyst consists of two components which are prepared separately and combined thereafter. The first component contains at least one compound of a metal of group VIII and/or at least one compound of a metal of group I B supported on one or several carrier materials. The second component contains at least one compound of a metal of group II A and/or IV A and/or III B and/or IV B supported on one or several carrier materials. A particularly preferred catalyst consists of a mixture of equal volume parts of platinum/charcoal as first component and of thorium/charcoal as second component.

REFERENCES:
patent: 3950438 (1976-04-01), Schaafsma et al.
patent: 4018833 (1977-04-01), Muller et al.
patent: 4154965 (1979-05-01), Meijer et al.

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