The present invention relates to a process for the manufacture of
catalysts used for producing para-xylene by toluene shape selective
alkylation. The invention is primarily used for solving the problems in
the old technology, e.g., high requirements on the environment and great
treatment of waste water containing organic amines when synthesizing
ZSM-5 molecular sieves by using an organic amine as the template agent;
small and non-homogeneous particles of the molecular sieves when
synthesizing ZSM-5 molecular sieves by using an alcohol or ether as the
template agent, such that the catalyst prepared thereby has low catalytic
selectivity and low toluene conversion rate, etc. Said problems are
better solved in the present invention by synthesizing ZSM-5 molecular
sieves using the combination of organic amines and alcohols or ethers as
the template agents (having a weight ratio of organic
amines/alcohols=0.05-150, and organic amines/ethers=0.05-150), and
modifying with organosilicon so as to obtain the catalysts. Said
catalysts can be used in the industrial production of para-xylene
manufactured by toluene shape selective alkylation.