催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (5): 369-371.

• 研究快讯 •    下一篇

铜锰双金属氧化物催化的液相甲苯氧化反应

李晓强1,2,徐杰1*,周利鹏1,高进1,王峰1,陈晨1   

  1. 1 中国科学院大连化学物理研究所, 辽宁大连 116023; 2 中国科学院研究生院, 北京 100049
  • 收稿日期:2006-05-25 出版日期:2006-05-25 发布日期:2006-05-25

Heterogeneous Catalytic Oxidation of Toluene with Molecular Oxygen over Cu-Mn Oxides

LI Xiaoqiang1,2, XU Jie1, ZHOU Lipeng1, GAO Jin1, WANG Feng1, CHEN Chen1   

  1. 1 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2 Graduate School of The Chinese Academy of Sciences , Beijing 100049
  • Received:2006-05-25 Online:2006-05-25 Published:2006-05-25

PDF

638

被引次数

41

摘要： 工业上甲苯氧化反应采用均相醋酸钴催化剂,以溴化物为促进剂在乙酸溶液中进行. 乙酸和溴化物的使用使催化剂的分离和回收非常困难,并非常容易腐蚀设备; 另外很容易形成大量有毒废液对环境造成污染. 本文以共沉淀法制备的铜锰氧化物为催化剂,在无溶剂的条件下进行了甲苯液相氧化反应,得到了较好的催化效果. 催化剂最佳Cu:Mn摩尔比为1:1, 此时催化剂的主要物相为Cu1.5Mn1.5O4.

关键词: 甲苯, 液相氧化, 铜锰氧化物

Abstract: Cu-Mn oxides prepared by the coprecipitation method were employed in the liquid-phase oxidation of toluene with molecular oxygen in the absence of solvent. The molar ratio of Cu∶Mn for the best performance of the Cu-Mn oxides in the toluene oxidation is 1∶1. X-ray diffraction characterization shows that the Cu-Mn oxide with a Cu∶Mn ratio of 1∶1 consists of Cu1.5Mn1.5O4.

Key words: toluene, liquid-phase oxidation, copper manganese oxide