文献类型：会议论文

英文题名：Selection of Imidazolium-Based Ionic Liquids for Vitamin E Extraction from Deodorizer Distillate

作者：Qin, Lei[1];Zhang, Jianan[1];Cheng, Hongye[1];Chen, Lifang[1];Qi, Zhiwen[1];Yuan, Weikang[1]

机构：[1]E China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Max Planck Partner Grp, Shanghai 200237, Peoples R China

会议论文集：6th International Congress on Ionic Liquids (COIL-6)

会议日期：JUN 16-20, 2015

会议地点：Jeju City, SOUTH KOREA

语种：英文

外文关键词：Vitamin E; Deodorizer distillate; Solvent selection; Ionic liquid; Extraction; Hydrogen bond; Interaction forces

摘要：Deodorizer distillate as a byproduct of vegetable oil refining is an important source of natural vitamin E. Simple and green extraction can be employed to recover vitamin E from deodorizer distillate, and its performance strongly relies on the solvent used in the process. In order to screen an imidazolium-based ionic liquid (IL) as entrainer, a methodology integrating theoretical and experimental evaluations was applied. ILs composed of 47 types of anions were first investigated by COSMO-RS to figure out the most promising one, and the effect of the alkyl chain on the imidazolium ring was addressed by experiments. The IL [C(6)MIm]Ac was finally determined as the most promising solvent with the selectivity of 108.23 and the partition coefficient of 8.182 for alpha-tocopherol. The liquid liquid equilibrium data and the extraction result for corn oil deodorizer distillate indicate its superior performance for the extraction process dealing with a low concentration of vitamin E.