FIELD: chemistry.
SUBSTANCE: invention relates to catalysts for synthesis of carboxylic esters. Described is a catalyst for synthesis of a carboxylic ester through reaction of (a) an aldehyde and alcohol, or (b) one or more types of alcohols in the presence of oxygen, the catalyst containing: nickel oxide; and X, where X is at least one element selected from a group comprising palladium, platinum, ruthenium, gold, silver and copper, deposited on a carrier in atomic ratio Ni/(Ni+X) from 0.20 to 0.99. Described is a method of preparing a catalyst for synthesis of a carboxylic ester, involving a first step for producing a catalyst precursor by depositing nickel and component X, where X is at least one element selected from a group comprising palladium, platinum, ruthenium, gold, silver and copper on a carrier through neutralisation of an acidic solution of a soluble metal salt containing nickel and X; and a second step for oxidising nickel via thermal treatment of the obtained catalyst precursor, where the atomic ratio Ni/(Ni+X) ranges from 0.20 to 0.99. Described also is a method for synthesis of a carboxylic ester, involving a step for reaction of the described catalyst with (a) an aldehyde and alcohol, or (b) one or more types of alcohols, in the presence of oxygen.
EFFECT: active catalyst for synthesis of a carboxylic ester is obtained.
17 cl, 5 tbl, 5 dwg, 48 ex
