摘要
由于粉晶状沸石分子筛在实际应用过程中存在操作不便、难回收、易失活及易集聚等缺点,因而需要加入粘结剂制成具有一定强度的型体;而加入粘结剂必然会降低有效分子筛的含量,且会部分堵塞分子筛孔口而影响其使用性能,甚至有时会引发一些不良的副反应。因此,无粘结剂分子筛的开发应用研究成为重要的研究课题。本文综述了利用天然硅酸盐合成无粘结剂沸石分子筛的研究现状和发展动态,重点讨论了无粘结剂分子筛的制备方法、原料矿物种类及合成技术条件等,并提出了下一步研究的重点方向。
Powder zeolite is inconvenient to use because of difficult operation and recovery, and easy deactivation and reunion, so it is shaped by adding a binder. However, the binder can influence performances of shaping body by reducing the effective content and blocking channels of zeolite. Sometimes, it may also cause some secondary reactions. Therefore, binderless zeolites have attracted intensive research efforts due to their potential applications as separation, adsorption and catalysis materials. This review elucidates recent progress in the binderless zeolite from silicate minerals, and especially discusses the technological characteristics of raw mineral and preparation methods. Simultaneously, the key research problems and the future development on the binderless zeolite are prospected.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2011年第4期845-849,共5页
Bulletin of the Chinese Ceramic Society
基金
山东省自然科学基金(2004ZX25)
暨淄博市科学技术发展计划项目
关键词
硅酸盐矿物
造孔剂
无粘结剂分子筛
合成方法
bindcrless zeolite
silicate mineral
micropore generating material
preparation method
