环境友好高硅沸石分子筛(MCM-22)的动态高效合成  

The effective rotating synthesis of environment-friendly high silica zeolite MCM-22

作　　者：李志荣[1] 商平[1] 

机构地区：[1]天津科技大学海洋化工学院,天津300222

出　　处：《吕梁学院学报》2008年第2期52-53,共2页Journal of Lyuiang University

基　　金：天津市科技支撑计划重点项目资助

摘　　要：在极低的n(H2O)/n(SiO2)条件下成功地合成了纯相、高结晶度的MCM-22分子筛.具体的合成条件为:n(HMI)/n(SiO2)为0.2～1.0,n(H2O)/n(SiO2)为12～20,n(SiO2)/n(A12O3)为3O～8O.与n(H2O)/n(SiO2)=35条件下合成的MCM-22分子筛相比,低n(H20)/n(SiO2)条件下合成MCM-22分子筛大大降低了HMI和NaOH的用量,不仅有利于降低MCM-22的合成成本,而且减少对环境的污染.Zeolite MCM-22 with pure phase and good crystallinity was prepared successfully under low n(H2O)/n(SiO2).The typical crystallization conditions were n(HMI)/n(SiO2)of 0.2-1.0,n(H2O)/ n(SiO2)of 12-20,n(SiO2)/n(A12O3)of 30-80,with which the synthesis system was called the extremely dense system.In this method the consumption of HMI and NaOH could be effectively decreased,which was beneficial to the reduction of synthesis cost and the protection of environment.

关 键 词：MCM-22 分子筛 MWW 动态合成 

分 类 号：TQ110.7[化学工程—无机化工]