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AssigneeBP Corporation North America Inc.
InventorsWayne P. Schammel, Bradley J. Huggins, Matthew A. Kulzick, Philip O. Nubel, Bryan M. Rabatic, Chengxiang Zhou, Victor A. Adamian, William H. Gong, Peter D. Metelski
Estimating the term…
Catalytic compositions for conversion of substituted aromatic feed materials to oxidized products comprising aromatic carboxylic acid derivatives of the substituted aromatic feed materials comprise solid particles comprising palladium in combination with at least one of antimony, bismuth and gold, and optionally, an additional metal or metalloid component effective to promote activity or selectivity of the palladium and antimony, bismuth or gold for oxidation to aromatic carboxylic acids. A process for oxidizing substituted aromatic feed materials comprises contacting the feed material with oxygen in the presence of such catalytic compositions in a liquid reaction mixture.
A catalyst composition comprising a solid having a surface and comprising
A process for manufacture of a catalyst having activity for oxidation of substituted aromatic hydrocarbons to aromatic carboxylic acids comprising contacting at least one solid, particulate support material with a solution or solutions of at least one soluble palladium salt and at least one soluble salt of antimony, bismuth, gold or a combination thereof, wherein the support material is contacted concurrently with the palladium and antimony, bismuth, gold or combination of antimony, bismuth and gold salt solution or solutions or in steps such that contacting with the palladium salt solution precedes or is concurrent with contacting with the antimony, bismuth, gold or combination of antimony, bismuth and gold salt solution or solutions.
A process for conversion of an aromatic feedstock to an oxidized aromatic product comprising at feast one aromatic carboxylic acid comprising contacting an aromatic feedstock comprising a substituted aromatic hydrocarbon having at least one oxidizable substituent group with oxygen in a liquid reaction mixture formed by combining components comprising the aromatic feedstock, oxygen and a catalyst composition comprising palladium and at least one of antimony, bismuth and gold, wherein particles dispersed on a surface of the catalyst comprise at least a portion of the palladium in combination with at least a portion of at least one of antimony, bismuth or gold, to convert the aromatic feedstock to an oxidized aromatic product comprising at least one aromatic carboxylic acid.
An aromatic carboxylic acid composition comprising aromatic carboxylic acid and, by weight thereof, about 0.001 to about 2000 ppmw palladium, calculated as the element, and about 0.001 to about 2000 ppmw antimony, bismuth, gold or a combination thereof, calculated as the element or elements, wherein palladium and at least one of antimony, bismuth and gold are present in particles in which the atom ratio of palladium to antimony, bismuth, gold or a combination thereof is about 0.1:1 to about 10:1.
Dependencies are inferred from the claim text.