催化学报

催化学报 ›› 2006, Vol. 27 ›› Issue (5): 416-420.

• 研究论文 • 上一篇    下一篇

二苯基膦胺配体的合成及其与铬(Ⅲ)化合物催化乙烯四聚的性能

张宝军1,2,王延吉1,姜涛3,邢立华2   

  1. 1 河北工业大学化工学院, 天津 300130; 2 中国石油天然气股份有限公司大庆石化分公司研究院, 黑龙江大庆 163714; 3 大庆石油学院化学化工学院, 黑龙江大庆 163318
  • 收稿日期:2006-05-25 出版日期:2006-05-25 发布日期:2006-05-25

Synthesis of Diphenylphosphinoamine Ligands and Their Catalytic Performance for Ethylene Tetramerization with Cr(Ⅲ) Compounds

ZHANG Baojun1,2, WANG Yanji1*, JIANG Tao3, XING Lihua2   

  1. 1 School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China; 2 Research Institute of Daqing Petrochemical Company, PetroChina Company Limited, Daqing 163714, Heilongjiang, China; 3 School of Chemistry and Chemical Engineering, Daqing Petroleum Institute, Daqing 163318, Heilongjiang, China
  • Received:2006-05-25 Online:2006-05-25 Published:2006-05-25

PDF

1101

被引次数

31

摘要： 利用氯化二苯基膦与二胺类化合物反应生成二苯基膦胺配体, 它与四氢呋喃氯化铬或乙酰丙酮铬在甲基铝氧烷的存在下显示出较高的催化乙烯四聚的活性和较高的生成 1-辛烯选择性(最高可达73.1%). 产物除 1-辛烯外, 还包括 1-己烯、甲基环戊烷和亚甲基环戊烷. 实验结果表明, 铬化合物类型对催化剂活性和 1-辛烯选择性影响较小, 而反应温度、压力和Al/Cr摩尔比等对催化剂活性和1-辛烯选择性影响较大.

关键词: 铬, 二苯基膦胺, 乙烯, 四聚, 辛烯

Abstract: Diphenylphosphinoamine ligands were synthesized by reacting bis(phenyl)phosphorus chloride with diamines. They exhibited exceptionally high selectivity (up to 73.1%) towards 1-octene and catalytic activity for ethylene tetramerization in the presence of Cr(Ⅲ) compounds (chromium chloride tetrahydrofuran or chromium acetyl acetonate) and methylaluminoxane. Besides the target product 1-octene, main side-products such as 1-hexene, methylcyclopentane, and methylenecyclopentane are also valuable. The activity and the selectivity for 1-octene are dependent on the catalyst ligand structure and the reaction conditions such as reaction temperature, pressure, and the Al/Cr molar ratio, while the Cr(Ⅲ) compounds have nearly no effect on them.

Key words: chromium, diphenylphosphinoamine, ethylene, tetramerization, octene