Process for preparing carboxylic acid salts and methods for making such catalysts and catalysts useful in such process
AssigneeMonsanto Company
InventorsJerry R. Ebner, Thaddeus S. Franczyk
Life of this patent
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Abstract
A process to manufacture a carboxylic acid salt is disclosed wherein an aqueous solution of a primary alcohol is contacted with a base hydroxide in the presence of an effective amount of a catalyst consisting essentially of an alkali resistant support, from about 0.05 wt. % to about 10 wt. %, based on the total weight of the catalyst, of an anchor metal is selected from the group consisting of platinum, palladium, ruthenium, and gold, and between about 1 wt. % and about 50 wt. %, based on the total weight of the catalyst, of an element selected from the group consisting of copper, cobalt, nickel, and cadmium combined with the anchor metal.
Claims39
A supported catalyst useful in the preparation of carboxylic acid salts, said catalyst comprising:
- (a) an alkali resistant support;
- (b) a plurality of noble metal particles dispersed and partially embedded in said support, the non-embedded portion of said particles having non-embedded surfaces, said noble metal on said surfaces being in an elemental state;
- (c) a coating of a catalytically active metal selected from the group of copper, cobalt, nickel, cadmium or mixture thereof, said cataytically active metal being in elemental form, said coating being attached to and covering at least some of the non-embedded surfaces of said noble metal particles, said coating having an outside catalytically active surface.
A supported catalyst useful in the preparation of carboxylic acid salts, said catalyst comprising:
- (a) a carbon support;
- (b) finely divided particles of noble metal partially embedded in a carbon support so as to define an embedded portion and a non-embedded portion, the non-embedded portion having a non-embedded surface;
- (c) a coating of copper attached to said noble metal and covering the non-embedded surfaces of at least some of said noble metal particles, said coating of copper metal having an outside surface in elemental state, said outside surface being catalytically active in the preparation of carboxylic acid salts.
A supported catalyst useful in the preparation of carboxylic acid salts, said catalyst consisting essentially of:
- (a) an alkali resistant support;
- (b) a plurality of noble metal particles dispersed and partially embedded in said support, the non-embedded portions of said particles having non-embedded surfaces, said noble metal as said surfaces being in elemental form;
- (c) a coating of a base metal selected from the group of copper, cobalt, nickel, cadmium, or mixtures thereof, said base metal being in elemental form, said coating being attached to and covering at least some of the non-embedded surfaces of said noble metal particles, said coating having an outside catalytically active surface.
Dependencies are inferred from the claim text.