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研究了ＨＭ，ＨＺＳＭ－５和其它几种固体酸催化剂上的甲苯硝化反应，发现高硅铝比ＨＺＳＭ－５沸石的活性及对位选择性最高，甲苯转化率达６５％，ｐ／ｏ比达０．７８．通过考察沸石晶粒大小、酸性强弱、脱铝程度和阳离子交换等因素对反应活性和选择性的影响，发现该反应主要在沸百孔内进行，对位选择性与沸石的孔径存在一定对应关系．沸石催化剂除能促进ＨＮＯ３解离成ＮＯ外，对甲苯也有活化和富集作用，因而反应活性与催化剂的酸性有关，适当增加沸石的亲油性也有利于提高硝化反应活性．
The nitration of toluene on HM, HZSM-5 and other solid acid catalysts was studied. The results showed that the activity and para-position selectivity of high-silica-alumina zeolite HZSM-5 were the highest. The conversion of toluene reached 65% and the p / 0.78. The effects of zeolite crystal size, acidity, degree of dealumination and cation exchange on the reactivity and selectivity of the zeolite were investigated. It was found that the reaction was mainly carried out in the boiling point pore, and there was a certain correspondence between the para selectivity and the zeolite pore size relationship. In addition to being able to promote the dissociation of HNO3 to NO, the zeolite catalyst is also activated and enriched in toluene. Therefore, the reactivity of the zeolite is related to the acidity of the catalyst. Appropriately increasing the lipophilicity of the zeolite also improves the nitrification reactivity.