Zeolite MCM-22 obtained from this system had higher crystallinity than those prepared under high n ( H2O)/n (SiO2 ) (n( H2O)/n(SiO2) = 35). Correspondingly, its BET surface area and micropore volume increased.

• 与n(H2O)/n(SiO2)=35条件下合成的MCM-22分子筛相比,低n(H2O)/n(SiO2)极浓体系条件下合成的MCM-22分子筛具有更高的结晶度,且其比表面积和孔容均有所增加。