偏高岭土微波加热合成NaX分子筛及其机理.pdf

第卷第期硅酸盐通报
30 5 Vol. 30 No. 5
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2011 年 10 月 BULLETIN OF THE CHINESE CERAMIC SOCIETY October 2011
偏高岭土微波加热合成 NaX 分子筛及其机理探讨
罗河济,周志辉,吕振华,刘红
,
武汉科技大学资源与环境工程学院武汉 430081
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摘要本文以偏高岭土为主要原料采用微波加热法合成了静态饱和吸水量超过 32. 0% 的 NaX 分子筛。进行了单
因素实验,考察了晶化时间胶化时间对合成分子筛的影响通过静态水吸附测定和
、、n Na2 O /Al2 O3 。、XRD、IR
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SEM 等测试手段考察反应条件对合成 NaX 分子筛的影响并对 NaX 分子筛晶体生长规律进行了探讨研究。实验
得出了优化条件为晶化时间为,胶化时间为, 为
105 min 30 min n Na2 O /Al2 O3 4. 7。

关键词偏高岭土微波加热 NaX 分子筛晶化机理

中图分类号 TQ425 文献标识码 A 文章编号 1001-1625 2011 05-1014-05
Microwave-assisted Synthesis of NaX Zeolite from
Metakaolinite and Its Crystallization Mechanism
, , ,
LUO He-ji ZHOU Zhi-hui LV Zhen-hua LIU Hong
, , ,
College of Resources and Environment Engineering Wuhan University of Science and Technolgy Wuhan 430081 China
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Abstract In this paper metakaolinite was used as raw material to synthesize NaX zeolite adsorption dryer
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by microwave-assisted heating the static water absorption ratio of the zeolite was above 32. 0% . The
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crystal time glue time and n Na2 O /Al2 O3 which effected the crystal were determined by the single
, ,
factor method. The growth rule of NaX zeolite was discussed according to static water absorption XRD IR
,
and SEM. The NaX zeolite was obtained under the optimum conditions the crystal time was 105 min glue
,
time was 30 min n Na2 O /Al2 O3 was 4. 7.

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