SILICON OXIDE BASED SUPPORT, HETEROPOLYACID CATALYST BASED ON SAID SUPPORT AND SYNTHESIS OF ESTERS IN PRESENCE OF HETEROPOLYACID CATALYST DEPOSITED ON SILICON OXIDE Russian patent published in 2010 - IPC C07C67/04 B01J21/08 B01J23/30 B01J35/10 B01J37/10 C07C69/14 B01J23/16 B01J27/188 

FIELD: chemistry.

SUBSTANCE: invention relates to an improved method for synthesis of an ester through reaction of 1-olefin with a monobasic carboxylic acid and water in vapour phase in the presence of a heteropolyacid catalyst on silica gel, in which the silica gel support is in from of granules treated with water vapour at temperature between 100 and 300°C for a period of time between 0.1 to 200 hours, before or simultaneously with application of the heteropolyacid onto the support. The invention also relates to a heteropolyacid catalyst deposited on silica gel and to a method of preparing the catalyst, where the support is obtained by treating silica gel granules with water vapour at temperature between 100 and 300°C for a period of time between 0.1 and 200 hours, before or simultaneously with application of the heteropolyacid onto the support.

EFFECT: use of the said catalyst in the ester synthesis method through reaction of 1-olefin with a monobasic carboxylic acid and water in vapour phase enables to reduce content of methyl ethyl ketone in products.

43 cl, 1 ex