VAM shell catalyst, the production method and usage

摘要

At the same time as for this invention, as for this invention, the natural stratified silicate, especially, acid it has the porous catalyst carrier which designates the calcination bentonite which was processed as the base vinyl acetate monomer (VAM) in regard to the shell catalyst for synthesizing, the aforementioned catalyst carrier has palladium and the gold and being formed as the compact, becomes. In order to offer the shell catalyst because VAM is formed, this shell catalyst relatively high VAM selectivity and has featured high activity, but it is proposed that the aforementioned catalyst carrier has had the specific surface under 130m2/g. Selective figure It is not