硅酸盐学报2012，Vol.40Issue(8)：1204-1209,6.
以高岭土和硅藻土为原料原位晶化合成NaY分子筛
Synthesis of NaY Zeolite from Kaolin and Diatomite by in-situ Crystallization
摘要
Abstract
The microporous NaY zeolite was synthesized through in-situ crystallization using kaolin and diatomite in different pro-portions. The synthesized samples were characterized by X-ray diffraction, scanning electron microscope and N2 adsorption-desorption, respectively. The effect of different n（SiO2）：n（Al2O3）（mole ratio）, n（Na2O）：n（SiO2） and n（H2O）：n（Na2O） on the rela- tive crystallinity of the NaY zeolite was investigated when m（kaolin）：m（diatomite）（mass ratio） was 6：4 and 2：8. The results show that when m（kaolin）：m（diatomite） is 6：4, the relative crystaltinity of NaY zeolite firstly increases and then decreases with the increase of the n（SiO2）：n（A1203）. The increase of the n（Na2O）：n（SiO2） and the decrease of n（H2O）：n（Na20） in the reaction system could favor the formation of NaY zeolite. When m（kaolin）：m（diatomite） is 2：8, the relative crystallinity of NaY zeolite firstly increases and then decreases with increasing the n（SiO2）：n（Al2O3）. However, the relative crystallinity of NaY zeolite decreases with increasing the n（Na2O）：n（SiO2） and decreasing the n（H2O）：n（Na2O）.关键词
高岭土/硅藻土/原位晶化/分子筛Key words
kaolin/diatomite/in-situ crystallization/zeolite分类
化学工程引用本文复制引用
程远坤,钱东,郑淑琴,姚华,唐课文..以高岭土和硅藻土为原料原位晶化合成NaY分子筛[J].硅酸盐学报,2012,40(8):1204-1209,6.基金项目
国家自然科学基金 （）
湖南省自然科学基金 （）
博士后基金 （）
湖南省科技计划重点资助项目 （）
