一、引言沸石分子筛作为一类新颖的固体酸催化剂而用于催化有机反应,已越来越引起人们的关注和重视,尤其是,它正在取代硫酸、盐酸等强腐蚀性液体酸催化剂,使许多均相催化反应,如酯化、醚化等,被液-固或气-固之类的多相催化反应所取代,从而解决了长期以来均相催化反应中以硫酸、盐酸等作催化剂所存在的不少缺点和弊病:如严重腐蚀设备、产物及剩余反应物与催化剂难于分离、催 I. INTRODUCTION As a kind of novel solid acid catalyst, zeolite molecular sieve has attracted more and more attentions due to its application in catalysis of organic reaction. In particular, it is replacing strong corrosive liquid acid catalyst such as sulfuric acid and hydrochloric acid, Homogeneous catalysis, such as esterification and etherification, are replaced by heterogeneous catalysis, such as liquid-solid or gas-solid, which can solve the problem of the presence of sulfuric acid, hydrochloric acid and other catalysts for a long time in homogeneous catalysis Many shortcomings and drawbacks: such as severe corrosion of equipment, the product and the remaining reactants and the catalyst difficult to separate, reminder