制备条件对酸化膨润土负载镍催化剂苯加氢活性的影响  

Influence of Preparation Condition on Hydrogenation of Benzene over Ni Catalysts Supported on The Acid-activated Bentonite

作　　者：张荣斌[1] 王亮[1] 徐美莉[1] 

机构地区：[1]南昌大学化学系,江西南昌330031

出　　处：《非金属矿》2011年第3期4-5,8,共3页Non-Metallic Mines

基　　金：国家自然科学基金(20763005/B030301)

摘　　要：采用酸回流膨润土制备了酸化膨润土,并以其为载体制备了镍催化剂,以苯加氢为探针反应,考察了酸种类、回流时间及固液比对酸化膨润土负载镍催化剂对苯加氢反应的影响。当使用浓度为15%的盐酸、固液比为1∶4、70℃下回流6 h时,酸化膨润土负载镍催化剂在140℃下能将苯完全转化为环己烷。Acid-activated bentonite was prepared by refluxing bentonite with different kinds of acid. Ni-supported catalysts were prepared by impregnation and evaluated by hydrogenation of benzene. The effect of preparation condition on hydrogenation activity was studied and the optimum preparation condition drawn on hydrogenation activity was concluded. Under 15% hydrochloric acid, solid-liquid ratio being 1 ： 4, temperature being 70 ~C and reflux time being 6h, the acid-activated bentonite supporting Ni catalysts could convert benzene to cyclohexane completely at 140~2.

关 键 词：酸化 膨润土 苯加氢 镍催化剂 

分 类 号：TD975.5[矿业工程—选矿] TQ426[化学工程]