化工进展 ›› 2016, Vol. 35 ›› Issue (05): 1460-1465.DOI: 10.16085/j.issn.1000-6613.2016.05.028

• 工业催化 • 上一篇    下一篇

Sb-SBA-15催化剂上二苯甲烷的合成

詹金友, 张耀兵, 沈健, 孙悦   

  1. 辽宁石油化工大学石化学院, 辽宁 抚顺 113001
  • 收稿日期:2015-09-01 修回日期:2015-11-20 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: 孙悦,硕士研究生,实验师,主要从事清洁燃料生产研究。E-mail sunyue19791980@126.com。
  • 作者简介:詹金友(1987-),男,硕士研究生。E-mail 15041394918@126.com

Synthesis of diphenylmethane on Sb-SBA-15

ZHAN Jinyou, ZHANG Yaobing, SHEN Jian, SUN Yue   

  1. College of Petrochemical Technology, Liaoning Shihua University, Fushun 113001, Liaoning, China
  • Received:2015-09-01 Revised:2015-11-20 Online:2016-05-05 Published:2016-05-05

摘要: 采用浸渍法制备了Sb-SBA-15催化剂,通过XRD、N2吸附-脱附、FTIR对其进行表征,结果表明,Sb-SBA-15催化剂仍具有六方介孔结构。考察了苯/氯化苄的摩尔比、反应时间、催化剂用量、反应温度对Sb-SBA-15催化苯与氯化苄苄基化反应的影响,并研究了反应的动力学。实验结果表明,Sb-SBA-15对苯与氯化苄的苄基化反应具有良好的催化性能,最佳反应条件为:苯与氯化苄的摩尔比8、反应时间3h、催化剂用量0.1g、反应温度120℃。在最佳条件下,氯化苄的转化率可达96.78%,二苯甲烷的选择性高达99%以上。

关键词: Sb-SBA-15, 苯, 氯化苄, 二苯甲烷, 合成, 催化剂, 动力学

Abstract: The catalyst of Sb-SBA-15 was synthesized by the impregnation method, and the samples were characterized by means of XRD, N2adsorption-desorption and FTIR. The results showed that Sb-SBA-15 catalyst still had hexagonal mesoporous structure. Effects of reaction conditions, namely benzene/benzyl chloride molar ratio, reaction time, catalyst dosage, reaction temperature, on benzylation as well as the reaction kinetics were studied. Sb-SBA-15 was very active in the benzylation of benzene with benzyl chloride. Under the optimal conditions: benzene/benzyl chloride molar ratio 8, reaction time 3h, catalyst dosage 0.1g, reaction temperature 120℃, conversion of benzyl chloride was 96.78%, and the selectivity of diphenyl methane was above 99%.

Key words: Sb-SBA-15, benzene, benzyl chloride, diphenyl methane, synthesis, catalyst, kinetics

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