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木虫 (初入文坛)

[求助] H_ZSM5和ZSM_5的制备

求助大家有没有了解这两种催化剂H_ZSM5和ZSM_5的制备方法!
非常感谢不胜感激!有没有这方面的文献!希望大家帮助!
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chemlife

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2楼2011-05-20 17:28:56
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xhtangxh

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【答案】应助回帖

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jinkai838(金币+2): 正解 2011-05-22 23:28:27
所谓ZSM-5只是一种MFI结构类型的分子筛代号,可以有不同的硅铝比,一般n(SiO2)/n(Al2O3)>12,在碱性条件下采用水热晶化合成,成品多数为Na型。如无特别说明,很难判断ZSM-5的硅铝比及Na含量。HZSM-5通常是用Na型ZSM-5经酸交换或用铵盐交换后焙烧制备。Na型ZSM-5和HZSM-5都可以买到,用量大的话最好买来自己处理。
3楼2011-05-21 20:29:11
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