CATALYTIC ACTIVITY OF ATTAPULGITE AND SYNTHESIS OF DIPHENYL METHANE

By using attapulgite as a catalyst material,the preparation process of attapulgite-supported ZnCl2,AlCl3 solid acid catalysts was studied.Benzyl chloride and benzene alkylation of the catalytic activity was detected.Effects of different acid treatment condi- tions,activation temperatures and different component loadings on catalytic alkylation activity of attapulgite-supported catalysts were examined.Characterization analysis shows that after acidification of attapulgite,load and activation treatment activated the compo- nent attapulgite-vector between the chemical bonding,thereby increasing the activity of the catalyst.Benzyl chloride conversion reaches 80.37%in the Friedel-Crafts reaction.