Supported catalyst for acrolein oxidation

Details Supported catalyst for acrolein oxidation Supported catalyst for acrolein oxidation

1974-09-24

1976-02-17

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

260530N, B01J 2916, C07C 5124

Patent

active

039390969

ABSTRACT:
An improved catalyst for use in a process for the vapor phase conversion of an unsaturated aldehyde (such as acrolein) to the corresponding unsaturated carboxylic acid (such as acrylic acid) is disclosed. The improved catalyst comprises an unagglomerated, 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, 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 is contained on the surfaces of the particles.

REFERENCES:
patent: 3557199 (1971-01-01), Parthasarathy
patent: 3644509 (1972-02-01), Allen

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