Pennie & Edmonds
Zeolite catalyst for the liquid phase alkylation and transalkylation of benzene
 Disclosed is a modified zeolite catalyst for the liquid phase alkylation and transalkylation of benzene comprising 30 to 70% by weight of H-beta zeolite with a silicon to aluminium ratio of 20 to 40; 0.5 to 10% by weight of halogen; and .gamma.-Al.sub.2 O.sub.3 of the balance. Also disclosed a method for preparing the said catalyst comprising adding a halogen-containing compound to a mixture of H-beta zeolite and a precursor of .gamma.-Al.sub.2 O.sub.3, forming followed by calcining. 
ChinaPetro-Chemical Corp. Research Institute of Petroleum Processing
C C C C
C07C C07C C07C C07C
inventional inventional additional additional
Zhiyuan Suxian Bin Xie Yali Weidong Fengmei
Huang Tian Zhu Wang Xu Wang Zhang