CATALYST FOR PREPARING VINYL CHLORIDE, PREPARATION METHOD THEREFOR AND USE THEREOF

摘要

A catalyst for preparing vinyl chloride, a preparation method therefor and the use thereof. The catalyst for preparing vinyl chloride consists of activated carbon as a support, and a compound supported with barium and a phosphorous compound, with the compounds of barium and phosphor making up 0.2%-20% and 0%-10% by mass percentage respectively, based on the total mass of the catalyst. A water-soluble barium compound and a water-soluble phosphorous compound and an aqueous polymeric monomer are formulated into a solution or emulsion A by adding water; the activated carbon is added into the solution or emulsion A for immersion; the immersed activated carbon is taken out and spin-dried, and then the monomer is polymerised; the polymerised activated carbon is heated and dewatered to decompose and carbonise the polymer; and the carbonised catalyst is activated to obtain the catalyst for preparing vinyl chloride.