氯苯在HZSM-5分子筛上选择性硝化的研究

RESEARCH OF THE NITRATION OF CHLORO-BENZENE WITH NITRIC ACID OVER HZSM-5 ZEOLITE CATALYSTS

研究了以HZSM-5分子筛为催化剂,氯苯-硝基化反应中各反应参数即反应物配比、反应时间、反应温度、催化剂用量以及HZSM-5分子筛硅铝比对p/o的影响。结果使用SiO_2/Al_2O_3为40的HZSM-5分子筛作催化剂可使p/o达到4.60,氯苯转化率21.0％。

Using HZSM-5 zeolite as catalysts, the effects of reaction parameters, e. g. reactants molar ratio, reaction time, reaction temperature, amont of HZSM-5 and SiO_2/Al_2O_3 ratio on p/o in the mono-nitration products of chlorobenzene have been studied. The results showod that p/o is 4.6 using HZSM-5 zeolite(SiO_2/Al_2O_3=40) as catalysts and the con- version of chlorobenzene is 20%.