| 第 32 卷第 3 期 |  | Vol. 32 No. 3 | | 2002 年 6 月 | Jun 2002 |
|
所属栏目：其它
环己烷部分裂解氧化催化剂研究 |
| 周小平; 蔡炳新; 张海洲(湖南大学化学化工学院; 湖南长沙; 410082) |
| 摘 要：用浸渍法制备了V2 O5/SiO2 、P K V/SiO2 、Cr K V/SiO2 、Mo K V /SiO2 和Fe K V/SiO2 几种固体样品 ,作为环己烷的催化裂化、氧化反应的催化剂。研究表明在V2 O5/SiO2上添加某些助剂后 ,使其脱氢、供氢、供氧中心得到改善 ,明显地抑制了深度裂解与氧化作用。Cr K V/SiO2 和Fe K V/SiO2 表面具有较强的脱氢中心和较弱的供氧中心 ,组成了适应于环己烷的部分裂化、氧化的活性中心 ,表现出较好的催化活性。 |
| 关键词：五氧化二钒; 环己烷; 裂化; 氧化 |
| 中图分类号：TA231.1 文献标识码：A 文章编号：1009-9212(2002)03-0016-02 |
|
| A Study on the Catalysts in the Part Cracking and Oxidation Reaction of Cyclohexane |
| Zhou Xiao-ping; et al （Chemistry and Chemical Engineering College of Hunan University; Changsha 410082; China） |
| Abstract：Some catalysts such as V 2O 5/SiO 2,P-K-V/SiO 2,Cr-K-V/SiO 2?Mo-K-V/SiO 2 and Fe-K-V/SiO 2 were prepared with impregnation method and they were used to the reaction of catalytical cracking and oxidation of cyclohexane.It is found that those catalysts supporting some cation on the V 2O 5/SiO 2 inhibit the deep cracking oxidation of cyclohexane obviously.On the surface of the two catalysts of Cr-K-V/SiO 2 and Fe-K-V/SiO 2, there are more active dehydrogenation centers and the lest active centers o... |
| Key words：vanadium pentoxide; cyclohexane; cracking; oxidation |
|
收稿日期：2001-10-18
|
| 阅读全文 |
|