| 酸处理和负载ZnCl2粘土结构的影响及应用研究 |
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| 引用本文： | 王志斌 许艺. 酸处理和负载ZnCl2粘土结构的影响及应用研究[J]. 化学研究与应用, 1999, 11(1): 66-69 |
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| 作者姓名： | 王志斌 许艺 |
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| 作者单位： | 南京大学化学系，兰州大学化学系，金陵石化南京烷基苯厂 |
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| 摘 要： | 目前，Ｆｒｉｅｄｅｌ－Ｃｒａｆｔｓ反应的催化剂主要还是容易造成严重污染的ＡｌＣｌ３，ＺｎＣｌ２和ＦｅＣｌ３等酸性氯化物。随着环保呼声的日益高涨，有的地方已实行环保一票否决制，故寻找可以代替ＡｌＣｌ３类的环境友好固体酸催化剂，已成为化工生产中的当务之急...
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| 关 键 词： | 改性粘土 负载ZnCl2 苯烷基化 |
A STUDY OF ACID-TREATED CLAYS AND CLAY SUPPORTED ZINC CHLORIDE |
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| Abstract: | We measured the structure of three kinds of clay from different mineral resources to observe the changes in structure, surface area, pore volume and pore size distribution before and after acid-treating and ZnCl 2 supporting. The catalytic activity and selectivity for the reaction between benzene and benzyl chloride by the clay supported ZnCl 2 as caltalysts were measured. It was shown that the plane layers in clay were destroyed by acid-treating for several hours and the mesopore structure with size of 45nm was observed. The total amount of acid sites was increased apparently after ZnCl 2 supporting. Such kinds of clay supported ZnCl 2 have very good selectivity and relatively high activity for benzylation reaction of benzene, so they will be possible to the made into catalysts of replae AlCl 3 and hopefully be used widely. |
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| Keywords: | Reformed clay supported zinc cholride Benzene alkyation |
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