Tetramerisation of ethylene,申请号US201314399092-传众专利搜索

Tetramerisation of ethylene

申请公布号：US9487456(B2)

申请号：US201314399092

申请日期：2013.05.08

申请公布日期：2016.11.08

申请人：

SASOL TECHNOLOGY (PROPRIETARY) LIMITED

发明人：Overett Matthew James;Maumela Munaka Christopher;Mogorosi Moses Mokgolela;Maumela Hulisani;Mokhadinyana Molise Stephen

分类号：C07C2/38;C07C2/36;B01J31/14;B01J31/18

主分类号：C07C2/38

代理机构：

Finnegan Henderson Farabow Garrett & Dunner LLP

代理人：Finnegan Henderson Farabow Garrett & Dunner LLP

地址：Rosebank ZA

摘要：A process for the tetramerisation of ethylene under solution phase conditions is carried out in the presence of an activated catalyst at a temperature above 80° C. and up to a temperature of about 130° C. The activated catalyst is provided by combining a source of chromium, a ligating compound, which ligating compound includes at least one fluorine substituted hydrocarbyl group, organoheteryl group, or heterohydrocarbyl group, and optionally a catalyst activator or combination of catalyst activators.

主权项：1. A process for the tetramerisation of ethylene, the process including: (a) providing an activated catalyst comprising: i) a source of chromium;ii) a ligating compound of the formula R1R2P1XP2R3R4 wherein P1 and P2 are phosphorus atoms;X is a linking group between P1 and P2; andR1 to R4 are independently a hydrocarbyl group, an organoheteryl group or a heterohydrocarbyl group, wherein at least one of R1, R2, R3, and R4 contains a fluorine substituent; andiii) optionally a catalyst activator or combination of catalyst activators; and (b) contacting ethylene to be tetramerised with the activated catalyst at a reaction temperature of from above 80° C. to about 130° C.