Method for producing a cyclic carbonate synthesis catalyst

Method by reacting epoxides with carbon dioxide heterogeneous catalyst having an excellent catalytic activity is used to synthesize cyclic carbonate, to produce in a simple and at low cost, the catalyst obtained by the manufacturing method, the It provides synthetic methods for cyclic carbonate using the catalyst. By reacting epoxides with carbon dioxide to a process for preparing a catalyst used for synthesis of cyclic carbonates, manufacturing method comprising the following steps (a) and (b). A silane compound having a (a) haloalkyl or haloaryl group, by reacting an adsorbed water content 1% by weight or less of silica gel, in the step of obtaining a catalyst precursor having a haloalkyl group or haloaryl group (b) step (a) obtained a catalyst precursor and a tertiary phosphine is reacted, step molar ratio of the halogen content and phosphorus content [halogen / phosphorus] to obtain a cyclic carbonate synthesis catalyst is 0.8 to 1.6