Catalyst containing rare-earth metal for preparing vinyl acetate using acetylene method and preparation method and use thereof

The invention belongs to the field of vinyl acetate synthesized by a fixed bed type acetylene gas phase method, in particular to a catalyst for preparing vinyl acetate by a rare earth metal-bearing acetylene method as well as a preparation method thereof, and the rare earth metal-bearing catalyst is applied to the synthesis of vinyl acetate which takes acetic acid and acetylene as raw materials by adopting the fixed bed type gas phase method. The zinc acetate and lanthanum acetate are dissolved with methanol, then active carbon is dipped in the methanol solution containing the zinc acetate and lanthanum acetate under agitation, the zinc acetate and lanthanum acetate are loaded on the active carbon through an impregnation method, and the catalyst is obtained after drying. The content of the loaded active component zinc acetate is 10 to 40wt% of the total weight of catalyst, and the content of the loaded active component lanthanum acetate is 0.1 to 5wt% of the total weight of catalyst. The catalyst takes the active carbon as a carrier, and adopts two metallic salts of the loaded zinc acetate and the lanthanum acetate, and the catalyst containing lanthanum acetate has the advantage of low initial temperature of reaction compared with the usual active carbon zinc acetate catalyst.