PROCESS FOR IMPROVING MELAMINE QUALITY BY REACTIVATING THE CATALYSTS USED IN THE MELAMINE SYNTHESIS

摘要

In the synthesis of melamine by conversion of urea in a fluidized catalyst bed, the melamine quality is improved by reactivating the catalyst by treating it, in the fluidized bed, with gases containing steam, in the absence of oxygen, at from 250 DEG to 450 DEG C.