The effect of acid treatment on the activity of clay supports for ZnCl2 alkylation catalysts

Abstract

Acid treatment of Ca²⁺ montmorillonite has been shown to increase significantly its effectiveness as a support for ZnCl₂ Friedel–Crafts alkylation catalysts; optimum treatment conditions have been established and evidence is reported for a synergistic interaction between absorbed salt and acid-activated clay.