Process for unsaturated aldehyde oxidation using a supported cat

Details Process for unsaturated aldehyde oxidation using a supported cat Process for unsaturated aldehyde oxidation using a supported cat

1974-09-25

1976-06-08

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252456, 260413, 260533N, C07C 5132

Patent

active

039623220

ABSTRACT:
An improved process for the conversion of an unsaturated aldehyde (such as acrolein) to the corresponding unsaturated carboxylic acid (such as acrylic acid) is disclosed. The improved process comprises reacting in the gas phase at a temperature sufficient to accomplish the desired reaction of the aldehyde with oxygen in the presence of unagglomerated particles of a supported catalyst having the empirical formula Mo.sub.a V.sub.b W.sub.c Mn.sub.d O.sub.e, the atomic ratio of Mo:V:W:Mn:O being such that when a is 12, b is 0.5 to 12, c is 0.1 to 6, d is 0.5 to 20 and e is 37 to 94, the catalytic metals being supported on porous silica particles having a surface area of from about 25 to about 350 m.sup.2 /gm and a porosity of from about 0.2 to about 1.0 cc/gm whereby essentially all of the catalytic metals are contained on the surfaces of the particles.

REFERENCES:
patent: 3383330 (1968-05-01), Kang
patent: 3644509 (1972-02-01), Allen
patent: 3691096 (1972-09-01), Sennewald et al.
patent: 3773828 (1973-11-01), Kadowaki et al.

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