In the process of liquid-liquid extraction,it is necessary to look for green solvents as extractants.Ionic liquids have been studied as extractants due to their green recyclability in recent years.The infinite dilutio...In the process of liquid-liquid extraction,it is necessary to look for green solvents as extractants.Ionic liquids have been studied as extractants due to their green recyclability in recent years.The infinite dilution activity coefficients of 100 ionic liquids with a combination of 10 cations and 10 anions were calculated by COSMO-SAC model,and theσ-profiles were plotted.The distribution coefficient and separation coefficient of n-heptane+tert-butanol+ILs were determined.[OMIM][OTF],[HMIM][OTF]and[BMIM][OTF]were selected as solvents for this study.The interaction energy,bond length and charge density of ionic liquids with tert-butanol were calculated by quantum chemistry calculation method.According to these results,the rationality of selected ionic liquids as extractants could be analyzed from the molecular level.At 298.15 K and 101.325 kPa,the liquid-liquid equilibrium data of the ternary system{n-heptane+tert-butanol+[OMIM][OTF],nheptane+tert-butanol+[BMIM][OTF],n-heptane+tert-butanol+[HMIM][OTF]}were measured.The distribution coefficient and separation coefficient for judging the extraction effect were obtained.The NRTL model was used to correlate liquid-liquid equilibrium experimental data,and correlation result proved that the correlated and experimental data had a good correlation.The research on ionic liquids is of great significance to the development of green and sustainable chemical industry.展开更多
本文为2012年毛细管电泳(CE)技术的年度回顾。文中介绍了2012年涉及CE技术的国际会议4个,国内会议3个,对各会议的研究报道进行了总结。文中还归纳了ISI Web of Science中检索的2012年度发表的CE论文,并对这些CE论文在生物医药研究和检...本文为2012年毛细管电泳(CE)技术的年度回顾。文中介绍了2012年涉及CE技术的国际会议4个,国内会议3个,对各会议的研究报道进行了总结。文中还归纳了ISI Web of Science中检索的2012年度发表的CE论文,并对这些CE论文在生物医药研究和检测器使用以及重要分析化学杂志发表的情况进行了分类说明。展开更多
基金supported by National Natural Science Foundation of China(No.21776145 and No.21676152)Qingdao science and technology benefiting people special project(No.18-6-1-99-nsh)Open project of chemistry department of Qingdao university of science and technology(QUSTHX201930)
文摘In the process of liquid-liquid extraction,it is necessary to look for green solvents as extractants.Ionic liquids have been studied as extractants due to their green recyclability in recent years.The infinite dilution activity coefficients of 100 ionic liquids with a combination of 10 cations and 10 anions were calculated by COSMO-SAC model,and theσ-profiles were plotted.The distribution coefficient and separation coefficient of n-heptane+tert-butanol+ILs were determined.[OMIM][OTF],[HMIM][OTF]and[BMIM][OTF]were selected as solvents for this study.The interaction energy,bond length and charge density of ionic liquids with tert-butanol were calculated by quantum chemistry calculation method.According to these results,the rationality of selected ionic liquids as extractants could be analyzed from the molecular level.At 298.15 K and 101.325 kPa,the liquid-liquid equilibrium data of the ternary system{n-heptane+tert-butanol+[OMIM][OTF],nheptane+tert-butanol+[BMIM][OTF],n-heptane+tert-butanol+[HMIM][OTF]}were measured.The distribution coefficient and separation coefficient for judging the extraction effect were obtained.The NRTL model was used to correlate liquid-liquid equilibrium experimental data,and correlation result proved that the correlated and experimental data had a good correlation.The research on ionic liquids is of great significance to the development of green and sustainable chemical industry.
文摘本文为2012年毛细管电泳(CE)技术的年度回顾。文中介绍了2012年涉及CE技术的国际会议4个,国内会议3个,对各会议的研究报道进行了总结。文中还归纳了ISI Web of Science中检索的2012年度发表的CE论文,并对这些CE论文在生物医药研究和检测器使用以及重要分析化学杂志发表的情况进行了分类说明。
