Preparation method of zinc glutarate cocatalyst for polypropylene carbonate production

The invention relates to the technical field of industrial catalysis and high polymer chemistry, in particular to a preparation method of a zinc glutarate cocatalyst for polypropylene carbonate production. The invention provides a preparation method of a zinc glutarate cocatalyst for polypropylene carbonate production, which is characterized by comprising the following steps: S1, adding a toluene solution into a reactor, then carrying out heating operation, and after the temperature is raised to 45-70 DEG C, adding glutaric acid solid into the reactor, and carrying out dissolving operation; s2, after the glutaric acid is completely dissolved in the toluene solution, adding zinc oxide powder into the reactor; s3, stirring the reactor for 4 hours, and cooling to room temperature to obtain a solid reaction product; s4, repeatedly washing the obtained solid reactant for three times by using an organic solvent; s5, vacuum vibration drying is used for drying, so that volatile matter is smaller than 200 ppm; the met