SHAPED CATALYST FOR DIRECT PREPARATION OF LACTIDE FROM LACTIC ACID AND PREPARATION OF THE SHAPED CATALYST

摘要

According to the present invention, provided is a shaped catalyst for preparing lactide from lactic acid including a tin-based catalyst and inorganic oxide binder used in a direct conversion from lactic acid to lactide, wherein the tin-based catalyst is selected from a tin compound, preferably tin oxide, having a tetravalent tin oxide state, and the inorganic oxide binder is preferably selected from colloidal silica.