PDF全文下载：2011010001
丁军委， 巩慧慧， 亓荣伟， 周海棠
（青岛科技大学 化工学院，山东 青岛 266042）
摘要: 以粗二硝基苯为原料，甲醇为溶剂，钼修饰的骨架镍为催化剂，实现了低压液相加氢反应制备苯二胺。考察了各因素对加氢反应的影响，确定了加氢反应的最优条件：温度80 ℃，压力1.2~1.5 MPa，甲醇、二硝基苯、催化剂质量比为50∶25∶1，催化剂单耗3.6 kg·t-1，二硝基苯的转化率为100%，苯二胺的选择性达到100%。
关键词: 二硝基苯； 催化加氢； 骨架镍； 苯二胺
中图分类号: O 625.63 文献标志码： A
Preparation of Phenylenediamine Through Catalytic Hydrogenation by Modified Catalyst
DING Jun-wei, GONG Hui-hui, QI Rong-wei, ZHOU Hai-tang
(CollegeofChemical Engineering,QingdaoUniversityof Science and Technology,Qingdao266042,China)
Abstract: Preparation of phenylenediamine was studied using crude dinitrobenzene as raw material, methanol as solvent and Raney nickel modified by molybdenum as catalyst at low pressure. The effects of factors on reaction results were investigated and the obtained optimum reaction conditions were temperature 80 ℃, pressure 1.2~1.5 MPa, m(methanol)∶m(dinitrobenzene)∶m(catalyst)=50∶25∶1, catalyst consumption 3.6 kg·t-1. Under above conditions, the dinitrobenzene conversion and phenylenediamine selectivity were 100%.
Key words: dinitrobenzene; catalytic hydrogenation; Raney nickel; phenylenediamine
收稿日期：2010-09-13
基金项目： 山东省优秀中青年科学家科研奖励基金项目(2005BS11005).
作者简介：丁军委（1970—）,男，副教授.
