新型铁配合物催化乙烯齐聚的研究  

Novel iron(Ⅱ) complex as highly active pre-catalyst for ethylene oligomerization

作　　者：郑明芳[1] 刘珺[1] 王怀杰[1] 张海英[1] 

机构地区：[1]中国石油化工股份有限公司北京北化院燕山分院,北京市102500

出　　处：《合成树脂及塑料》2016年第3期40-43,55,共5页China Synthetic Resin and Plastics

摘　　要：以合成的新型铁配合物——氯化2-正丁酰基-1,10-菲咯啉缩2,6-二乙基苯胺合铁（Ⅱ）为主催化剂,分别以甲基铝氧烷（MAO）、改性MAO（MMAO）、三乙基铝（TEAL）为助催化剂,催化乙烯齐聚。结果表明：相同条件下,以MAO或MMAO为助催化剂的催化剂活性远高于TEAL作助催化剂;以MMAO为助催化剂时,随n（Al）：n（Fe）的增大,催化剂活性呈先升高后降低的趋势,n（Al）：n（Fe）为800时,催化剂活性最高,为3.37×10^7 g/（mol·h）;随反应温度的升高,催化剂活性下降,产物分布向低碳数方向移动;随反应压力提高,催化剂活性升高,产物分布也向低碳数方向移动。Iron（Ⅱ） complex ligated by 2-n-propyl–ketimino-1,10-phenanthroline（2,6-diethylanil） is synthesized and used as main catalyst with methylaluminoxane（MAO）,modified MAO（MMAO） and triethyl aluminum（TEAL） as co-catalyst respectively for ethylene oligomerization. The results show that the catalytic activities activated with MAO or MMAO are much higher than those with TEAL under the same conditions. The catalytic activity of the catalyst goes up then drops with the increasing of Al/Fe mole ratio with MMAO as cocatalyst,and the catalytic activity reaches the highest of 3.37×10^7 g/（mol·h） when n（Al）∶n（Fe） is 800. In addition,the catalytic activity falls with the reaction temperature increasing,the product distribution shifts to low carbon; the catalytic activity rises followed by the pressure,and the product distribution shifts to low carbon as well.

关 键 词：乙烯齐聚 铁配合物 Α-烯烃 齐聚产物 

分 类 号：TQ426[化学工程] TQ325.12