Process for the production of unsaturated carboxylic acids and/o

Details Process for the production of unsaturated carboxylic acids and/o Process for the production of unsaturated carboxylic acids and/o

1984-04-09

1986-04-08

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

560104, 560190, 562599, 2604109R, C07C 67343, C07C 51353

Patent

active

045814716

ABSTRACT:
Unsaturated carboxylic acids and/or esters thereof are produced by reacting an aldehyde comprising formaldehyde or acetaldehyde with either a saturated carboxylic acid ester or anhydride in the vapor phase in the presence as catalyst of a high silica crystalline aluminosilicate zeolite in which the cation is H.sup.+ and/or a transition metal and/or a rare earth metal. In a modification of the process instead of formaldehyde there is used methanol/molecular oxygen and in the catalyst there is included either an oxidative or an oxidative/dehydrogenative component.

REFERENCES:
patent: 2734074 (1956-02-01), Redmon
patent: 3014958 (1961-12-01), Koch et al.
patent: 3089902 (1963-05-01), Vitcha et al.
patent: 3499028 (1970-04-01), McTeer
patent: 3654345 (1972-04-01), Jentsch
patent: 4336403 (1982-06-01), Merger et al.
patent: 4452907 (1984-06-01), Bell et al.
Hackh's Chemical Dictionary, 4th Ed. (1969), at p. 173.

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