将离子液体[bmim]PF6引入制膜过程,制备了PDMS膜以及离子液体支撑液膜和PDMS- IL共混膜.用所制的膜进行渗透汽化实验分离乙醇水溶液,研究料液温度、浓度和真空度等对膜渗透通量和分离因子的影响,并比较了3种膜的分离效果,实验结果表明,在分离乙醇水溶液时,PDMS- IL共混膜的综合分离效果优于普通的PDMS膜,而离子液体支撑液膜分离性能不理想.此外膜渗透通量都随料液温度、浓度的增大而增大,随透过侧压力的增大而减小；分离因子随料液温度、浓度和透过侧压力的增大而减小.
参考文献
| [1] | Lei Li;Zhibing Zhang;Shujuan Tan .Pervaporation of acetic acid/water mixtures through carbon molecular sieve-filled PDMS membranes[J].Chemical Engineering Journal,2004(1):83-86. |
| [2] | 王彦锋,陈砺,王红林.渗透汽化法在无水乙醇生产中的应用研究[J].可再生能源,2004(04):9-11,15. |
| [3] | 田秀枝,朱宝库,徐又一,徐志康.渗透蒸发脱除水中挥发性有机物的研究进展[J].环境污染与防治,2004(02):129-132. |
| [4] | Kuo A C M .Pervaporation dehydration of alcohol-water mixtures:Optimization for permeate flux and selectivity by central composite rotatable design[J].Journal of Membrane Science,2009,326:343-353. |
| [5] | Kober P A .Pervaporation,perstillation and percrystallization[J].Journal of the American Chemical Society,1917,39:944-948. |
| [6] | Qin Yingjie;Sheth J P .Pervaporation membranes that are highly selective for acetic acid over water[J].Industrial and Engineering Chemistry Research,2003,42:582-584. |
| [7] | Satyanarayana S V;Sharna A;Bhattacharya P K .Composit membrane for hydrophohic pervaporation:Study with the toluene-water system[J].Chemical Engineering Journal,2004,102:171-184. |
| [8] | Chinrizia R;Horwitz E P;Rickert P G et al.Application of supported liquid membranes for removal of uranium from groundwater[J].Separation Science and Technology,1990,25:1571-1586. |
| [9] | Zigova J;Sturdik E;Vandak E et al.Butyric acid production by clostridium butyrieum with integrated extraction and pertraction[J].Prcess Biochem,1999,34:835. |
| [10] | Pellegrino J J;Noble R D .Enhanced transport and liquid membranes in bioseparatio[J].Trends in Biotechnology,1990,8:216. |
| [11] | 吴锋,王保国.离子液体充填型支撑液膜分离乙醇/水混合物[J].膜科学与技术,2008(05):68-70,99. |
| [12] | Francisco J. Hernández-Fernández;Antonia P. de los Ríos;Manuel Rubio;Francisca Tomás-Alonso;Demetrio Gómez;Gloria Víllora .A novel application of supported liquid membranes based on ionic liquids to the selective simultaneous separation of the substrates and products of a transesterification reaction[J].Journal of Membrane Science,2007(1/2):73-80. |
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