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| TiO_2-ZrO_2制备条件对B_2O_3/TiO_2-ZrO_2催化环己酮肟气相Beckmann重排反应的影响 | |
| 引用本文： | 毛东森,陈庆龄,卢冠忠. TiO_2-ZrO_2制备条件对B_2O_3/TiO_2-ZrO_2催化环己酮肟气相Beckmann重排反应的影响[J]. 石油化工, 2002, 31(10): 783-786 |
| 作者姓名： | 毛东森 陈庆龄 卢冠忠 |
| 作者单位： | 1. 上海石油化工研究院,上海,201208 2. 上海石油化工研究院,上海,201208;华东理工大学工业催化研究所,上海,200237 3. 华东理工大学工业催化研究所,上海,200237 |
| 摘 要： | 考察了载体TiO2 -ZrO2 的制备条件对B2 O3/TiO2 -ZrO2 催化环己酮肟气相Beckmann重排反应性能的影响 ,确定较佳的制备条件 :分别以四氯化钛和氧氯化锆为钛源和锆源 ,采用反滴法将原料慢慢地滴加到沉淀剂氨水溶液中 ,沉淀终点的pH等于 9 0 ,沉淀的老化温度 2 5℃ ,焙烧温度 5 0 0℃。环己酮肟的转化率和己内酰胺的选择性分别高达 99 7%和 97 0 %。 |
| 关 键 词： | 环己酮肟 气相Beckmann重排反应 B2O3/TiO2-ZrO2催化剂 制备条件 |
| 文章编号： | 1000-8144(2002)10-0783-04 |
| 修稿时间： | 2002-01-04 |
Effects of Preparation Conditions of TiO2-ZrO2 on Vapor-Phase Beckmann Rearrangement of Cyclohexanone Oxime over B2O3/TiO2-ZrO2 Catalyst |
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| MAO Dong-sen ,CHEN Qing-ling ,,LU Guan-zhong. Effects of Preparation Conditions of TiO2-ZrO2 on Vapor-Phase Beckmann Rearrangement of Cyclohexanone Oxime over B2O3/TiO2-ZrO2 Catalyst[J]. Petrochemical Technology, 2002, 31(10): 783-786 | |
| Authors: | MAO Dong-sen CHEN Qing-ling LU Guan-zhong |
| Affiliation: | MAO Dong-sen 1,CHEN Qing-ling 1,2,LU Guan-zhong 2 |
| Abstract: | The effects of preparation conditions of TiO 2-ZrO 2 on catalytic performance of B 2O 3/TiO 2-ZrO 2 for vapor-phase Beckmann rearrangement of cyclohexanone oxime to ε -caprolactam were investigated.The optimum preparation conditions were:adoption of titanium tetrachloride and zirconium oxychloride as sources of titanium and zirconium;reactants were added dropwise to the precipitation agent aqueous ammonia by means of back titration;precipitation end point pH value,9 0;aging temperature of precipitate,25 ℃;and calcination temperature of precipitate,500 ℃.The conversion of cyclohexanone oxime and the selectivity for ε -caprolactam were 99 7% and 97 0%,respectively. |
| Keywords: | cyclohexanone oxime vapor-phase Beckmann rearrangement B 2O 3/TiO 2-ZrO 2 catalyst preparation conditions |
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