沸石固体酸催化苯硝基化研究

STUDY ON THE NITRATION OF BENZENE OVER ZEOLITE CATALYSTS

以硝酸为硝化剂，自制沸石固体酸为催化剂，进行了硝基苯合成新工艺的研究，优化的反应条件为：常压８０～１００℃、反应时间３ｈ，硝酸／苯（体积比）１．５～３．５时，硝基苯收率＞９６％。

The catalytic synthesis of nitrobenzene using nitric acid as a nitrating agent and solid acid as a catalyst was studied . The results showed that metals modified MFI structure zeolite M2+1 MFI shown good activity and high selectivity . The optimized reaction condition temperature: 80100 ,reaction time 3 hr , nitric acid/benzene volume ratio 1.53.5 .