季铵盐离子液体催化α-烯烃聚合的研究
Research on α-olefin polymerization over quaternary ammonium salt ionic liquid catalyst
胡创彩 1张丹 1李君华 1钱建华1
作者信息
- 1. 辽宁石油化工大学石油化工学院,辽宁 抚顺 113001
- 折叠
摘要
以三甲胺盐酸盐和AlCl3 为原料合成不同摩尔比的离子液体催化剂,测试了不同反应条件对1-癸烯齐聚产物性能的影响,采用GPC(高温凝胶色谱)和FT-IR(傅里叶红外光谱)对齐聚物进行测试.结果表明,在n(三甲胺盐酸盐)∶n(氯化铝)=1∶2.5、聚合温度为90℃、用量为 5%、时间为 6h 的反应条件下,得到的 1-癸烯齐聚物在 40℃和 100℃的运动黏度分别为59.67 mm2/s和10.62 mm2/s,转化率为 89.3%,凝点为-61.4℃,具有很好的低温流动性.当回收催化剂与新制催化剂的质量比为 9∶1时,聚合产物的性能浮动较小,表明催化剂可重复使用,经济效益好.
Abstract
Ionic liquid catalysts with different molar ratios are synthesized from trimethylamine hydrochloride and AlCl3,and used to test the impacts of different reaction conditions on the performance of 1-decene oligomerization products.GPC and FT-IR are utilized to characterize the products.The conditions are as follows:n(trimethylamine hydrochloride)∶n(AlCl3)=1∶2.5,1-decene polymerization happens at 90℃,the dosage of ionic liquid catalyst is 5%,and reaction lasts for 6 hours.The obtained oligomers have kinematic viscosities of 59.67 mm2·s-1 and 10.62 mm2·s-1 at 40℃and 100℃,respectively,with a conversion rate of 89.3%and a pour point of-61.4℃,exhibiting good low-temperature fluidity.When the catalyst that contains 90%of recovered catalyst and 10%of fresh catalyst is served in the oligomerization,the products remain a stable performance,indicating that the catalyst can be reused,and the economic benefit is good.
关键词
季铵盐型离子液体/齐聚反应/聚α-烯烃/1-癸烯/循环使用Key words
quaternary ammonium salt ionic liquid/oligomerization reaction/polyalpha-olefins/1-decene/recycling引用本文复制引用
基金项目
辽宁省科技厅揭榜挂帅科技攻关项目(2021020845-JH1/104)
抚顺市"抚顺英才计划"项目(FSYC202201001)
中央引导地方科技发展专项(2023JH6/100100047)
出版年
2024
NETL
NSTL
万方数据