Metallocene compound and application of byproduct thereof in catalytic esterification reaction

The invention discloses a metallocene compound and application of a byproduct thereof in catalytic esterification reaction. In the invention, common metallocenes such as ferrocene, titanocene, zirconocene, substituted metallocenes and metal component-contained wastes such as mother liquor, filter residues, solids and the like generated in the process of producing and purifying the metallocenes are used as catalysts; and through the catalysts and solid catalysts obtained by carrying out load treatment on the substances, carboxylic acid and alcohol are catalyzed to carry out esterification reaction. Results show that the catalysts can efficiently catalyze carboxylic acid and alcohol to carry out esterification reaction and have the advantages of high activity, small metal dosage, high reaction yield, convenience for treatment after the reaction and the like. Through the invention, the application range of the metallocenes on organic synthesis is expanded, the wastes generated in the process of producing the met