硅酸盐通报2013，Vol.32Issue(1)：121-125,5.
LSX分子筛的合成及吸附性能研究
Studies on Synthesis and Adsorption Properties of the LSX Molecular Sieve
摘要
Abstract
LSX molecular sieve was synthesized by two step hydrothermal process, and was characterized by XRD, TG-DTA and BET. When n(SiO2)/n( A12O3) was 2, the influence of different water to alkali and crystallization time on the crystalline structure of molecular sieve, the influence of lithium exchange on thermal stability of LSX powder and the influence of different mixture composition and crystallization time on the H2O and N2 adsorption properties was investigated. The results showed pure LSX powder was synthesized within the narrow range of water. A type and S type miscellaneous crystals were produced owing to more crystallization time. The thermal stability of the lithium exchange LSX powder was declined. As to adsorption properties, it was discovered that the trend of static H2O adsorption curve and N2 adsorption curve was basically the same. When n(H2O)/n( H2O + K2O) was 17 and ra(Na2O)/ n (Na2O + K2O) was 0. 77, the best ra(Na2O + K2O)/n(SiO2) was 3. 50; when the crystallization temperature is 100 X., the best crystallization time was 1.5 h.关键词
LSX分子筛/水热合成/H2O吸附/N2吸附Key words
LSX molecular/water thermal synthesis/H2O adsorption /N2 adsorption分类
化学化工引用本文复制引用
王洪亮,胡宏杰,郝小非,康瑞琴,王艳..LSX分子筛的合成及吸附性能研究[J].硅酸盐通报,2013,32(1):121-125,5.基金项目
国家国际科技合作专项项目(2011DFR51020). （2011DFR51020）
