PROCESS FOR THE PRODUCTION OF DIAMINODIPHENYLMETHANE AND ITS HIGHER HOMOLOGUES

摘要

A method of preparing diaminodiphenylmethane and higher homologues thereof from aniline and formaldehyde in the presence of heterogeneous solid acid catalysts selected from (a) delaminated zeolites and/or (b) metal silicate catalysts having an ordered mesoporous pore structure.