Catalyst composition for ethylene tetramerization and application of catalyst composition

• Main Authors: WU HONGFEI, LIU JUN, WANG XIAOQING, LI TONGLIN, ZHENG MINGFANG, HAN CHUNHUI
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2017
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a catalyst composition for ethylene tetramerization, which comprises a ligand compound shown as formula I as shown in the specification, a transition metal compound, a promoter and tert-butyl hydroperoxide, wherein R1, R2, R3 and R4 are the same or different and are independently selected from hydrogen, alkyl, alkoxyl, cycloalkyl or halogen; and R5 and R6 are the same or different and are independently selected from monocyclic or polycyclic aryl. The invention further provides a method of the ethylene tetramerization, which comprises the step of performing an ethylene tetramerization reaction in the presence of the catalyst composition for the ethylene tetramerization. the catalyst composition has superhigh reactivity, and the reaction is initiated rapidly, runs steadily, and is good in repeatability. 本发明提供了种乙烯四聚催化剂组合物，包括式I所示的配体化合物、过渡金属化合物、助催化剂和叔丁基过氧化氢；式中R、R、R和R相同或不同，各自独立地选自氢、烷基、烷氧基、环烷基或卤素；R和R相同或不同，各自独立地选自单环或多环芳基。本发明还提供了种乙烯四聚的方法，包括在所述的乙烯四聚用催化剂组合物的存在下，进行乙烯四聚反应，具有超高的反应活性，且反应引发迅速、运行平稳、重复性好