The silica base material, the ester synthesis which uses the hetero polyacid catalytic converter and the silica support hetero polyacid catalytic converter which then are produced

摘要

A silica support for use in the manufacture of a silica supported heteropolyacid catalyst for use in producing a carboxylic ester from a monocarboxylic acid, olefin and water wherein the support is produced by treating silica-gel granules with steam at a temperature in the range 100 to 300° C. for a period of time in the range 0.1 to 200 hours.