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| 用于乙烯齐聚高选择性制 1-辛烯反应的Cr(Ⅲ)基催化剂体系 | |
| 引用本文： | 张宝军,王刚,王斯晗,张德顺,王延吉.用于乙烯齐聚高选择性制 1-辛烯反应的Cr(Ⅲ)基催化剂体系[J].催化学报,2007,28(4):317-320. |
| 作者姓名： | 张宝军 王刚 王斯晗 张德顺 王延吉 |
| 作者单位： | 1. 河北工业大学化工学院,天津,300130;中国石油天然气股份有限公司大庆化工研究中心,黑龙江大庆,163714 2. 中国石油天然气股份有限公司大庆化工研究中心,黑龙江大庆,163714 3. 河北工业大学化工学院,天津,300130 |
| 基金项目： | 中国石油重点科技攻关项目 |
| 摘 要： | 将四元催化剂体系(乙酰丙酮铬-膦胺型配体-助催化剂甲基铝氧烷-促进剂六氯乙烷)用于乙烯齐聚制1-辛烯反应,考察了促进剂、助催化剂、Al/Cr摩尔比、反应温度和反应压力等对催化剂的活性和1-辛烯的选择性的影响.结果表明,该四元催化剂体系比三元催化剂体系(铬化合物-膦胺型配体-甲基铝氧烷)对乙烯齐聚反应具有更高的1-辛烯选择性.产物除有1-辛烯外,还有较大量的1-己烯、甲基环戊烷和亚甲基环戊烷.甲基铝氧烷是高选择性生成1-辛烯必不可少的助催化剂.作为促进剂的六氯乙烷可以使乙酰丙酮铬更有利于催化乙烯齐聚反应生成1-辛烯. |
| 关 键 词： | 乙酰丙酮铬 二苯基膦胺 甲基铝氧烷 六氯乙烷 乙烯 齐聚 辛烯 |
| 文章编号： | 0253-9837（2007）04-0317-04 |
| 修稿时间： | 2006-10-16 |
Cr(Ⅲ)-Based Catalyst System for Oligomerization of Ethylene to 1-Octene with High Selectivity |
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| ZHANG Baojun,WANG Gang,WANG Sihan,ZHANG Deshun,WANG Yanji.Cr(Ⅲ)-Based Catalyst System for Oligomerization of Ethylene to 1-Octene with High Selectivity[J].Chinese Journal of Catalysis,2007,28(4):317-320. | |
| Authors: | ZHANG Baojun WANG Gang WANG Sihan ZHANG Deshun WANG Yanji |
| Institution: | 1 School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China ; 2 Daqing Petrochemical Research Center, PetroChina Company Limited, Daqing 163714, Heilongjiang, China |
| Abstract: | A four-membered catalyst system(chromium acetyl acetonate(Cr(acac)3)-diphosphinoamine-methylaluminoxane-hexachloroethane) was used in ethylene oligomerization.The effects of promoters,cocatalysts,and reaction conditions such as Al/Cr molar ratio,reaction temperature,and reaction pressure on its catalytic activity and selectivity for 1-octene were studied.The results showed that the four-membered catalyst system for ethylene oligomerization improved the selectivity for 1-octene evidently.Besides the target product 1-octene,main side-products such as 1-hexene,methylcyclopentane,and methylenecyclopentane were also valuable.Methylaluminoxane was an indispensable cocatalyst for producing 1octene with high selectivity.Hexachloroethane showed a significant promotion effect on improving selectivity towards 1-octene over chromium centers. |
| Keywords: | chromium acetyl acetonate diphosphinoamine methylaluminoxane hexachloroethane ethylene oligomerization octene |
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