PREPARATIOPREPARATION OF 1-OCTENE BY ETHYLENE TETRAMERIZATION WITH HIGH SELECTIVITY  

作　　者：JIANG Tao CHEN Hongxia NING Yingnan CHEN Wei 

机构地区：[1]School of Chemistry and Chemical Engineering, Daqing Petroleum Institute, Daqing 163318, China [2]SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China

出　　处：《Chinese Science Bulletin》2006年第5期521-523,共3页

摘　　要：Two novel PNP ligands have been synthesized and characterized by 1H-NMR, elemen- tal analysis, and mass spectra. In combination with Cr(Ⅲ ) and cocatalyst MAO, they generate active catalytic systems that tetramerize ethylene with both high catalytic activity and high selectivity to produce 1-octene. The results show that these catalyst sys- tems are able to catalyze ethylene tetramerization, with high catalytic activity up to 0.89×106 g/mol Cr.h, and the selectivity of C8 in products is 72.52%, and the percentage of 1-olefins in the C8 cut is 97.87%.Two novel PNP ligands have been synthesized and characterized by ^1H-NMR, elemental analysis, and mass spectra. In combination with Cr（Ⅲ） and cocatalyst MAO, they generate active catalytic systems that tetramerize ethylene with both high catalytic activity and high selectivity to produce 1-octene. The results show that these catalyst systems are able to catalyze ethylene tetramerization, with high catalytic activity up to 0.89×10^6 g/mol Cr.h, and the selectivity of C8 in products is 72.52%, and the percentage of 1-olefins in the C8 cut is 97.87%.

关 键 词：1-辛烯 制备 乙烯 铬 催化剂 MAO 

分 类 号：O623.121[理学—有机化学]