摘要
BF_3与正丁醇络合物在催化1-癸烯聚合的过程中具有重要的作用,BF_3·正丁醇络合物结构随BF_3在正丁醇中质量分数的不同而不同。以BF_3与正丁醇为原料合成了含有不同w(BF_3)的BF_3·正丁醇络合物。采用~1H NMR、IR与^(19)F NMR对不同w(BF_3)的BF_3·正丁醇络合物的结构进行表征。并对不同w(BF_3)的BF_3·正丁醇络合物的催化1-癸烯的聚合性能进行研究。结果表明,当w(BF_3)=5%～33%,络合物主要是BF_3·(n-BuOH)_2,且其质量分数为9%～89%;w(BF_3)>33%,络合物中产生BF_3·n-BuOH,且w (BF_3·nBuOH)随着w (BF_3)的增加而增加,w (BF_3)=45%,w(BF_3·n-BuOH)=92%。然而w(BF_3)=5%～33%,络合物无催化活性。w(BF_3)=45%,其1-癸烯聚合转化率为27.32%,且选择性为11.13%(二聚体)、12.08%(三聚体)与4.11%(四聚体),并确定了BF_3·正丁醇络合物中催化1-癸烯聚合的有效催化结构为BF_3·n-BuOH,该研究结果为以BF_3·正丁醇络合物为催化剂,催化1-癸烯聚合合成聚α-烯烃(PAO)工业提供理论指导,为可控工艺提供技术支持。
The complexes of BF3with n-Butanol(n-BuOH)played an important role in catalyzing n-decene polymerization.The structures of BF3·n-BuOH complexes were varied with the mass fraction of BF3in n-Butanol.In this paper,1H NMR,IR and19F NMR were employed to characterize the structures of BF3complexes.The catalytic performance of BF3·n-BuOH complexes for n-decene polymerization was also studied.The result showed that BF3·(n-BuOH)2was the main structure when the mass fraction of BF3was5%~33%and the content of BF3·(n-BuOH)2was9%~89%.Meanwhile,the content of BF3·n-BuOH was increased with the increase of mass fraction of BF3,and the content of BF3·n-BuOH was92%when the mass fraction of BF3was over45%.However,there was no catalytic activity for BF3·n-BuOH complexes when mass fraction of BF3was5%~33%.When the mass fraction of BF3was45%,the conversion of n-decene polymerization was27.32%and the selectivity of product were11.13%(dimer),12.08%(trimer)and4.11%(tetramer).And the effective catalytic structure for the n-decene polymerization by BF3·n-BuOH complexes was determined to be BF3·n-BuOH.The results of this study provided theoretical guidance for the synthesis of PAO industry by using BF3·n-BuOH to catalyze n-decene polymerization and technical support for controllable processes.
作者
王俊
李洪鹏
施伟光
王斯晗
王力搏
刘通
孙恩浩
王玉龙
郭岱宗
WANG Jun;LI Hongpeng;SHI Weiguang;WANG Sihan;WANG Libo;LIU Tong;SUN Enhao;WANG Yulong;GUO Daizong(College of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing 163318,China;China National Petroleum and Natural Gas Corporation Daqing Chemical Research Center,Daqing 163712,China;College of mechanical science &engineering,Northeast Petroleum University,Daqing 163318,China)
出处
《化工科技》
CAS
2019年第1期22-27,共6页
Science & Technology in Chemical Industry
基金
国家重点研发计划项目(2017YFB0306700)
中国石油天然气股份有限公司科技攻关项目(2018B-2509)
