中文摘要：

典型阳离子的结构和从 aromatic/paraffin 混合物的苯和甲苯的分离上的离子的液体的阴离子的效果被学习。显示出的结果相应分离因素比传统的溶剂(Benzene+Hexane+sulfolane ) 的那些更加大，并且离子的液体能从烃混合物为 aromatics 的分离被用作新奇溶剂。为把 aromatics 与烃来源分开管理离子的液体的能力的关键参数被调查。基于一样的阴离子，离子的液体的有效性在阳离子顺序变化了，这被发现[BIqu ]+[BPy ]+[BMIM ]+ 。向 aromatics 的离子的液体的选择与它的 cationic 头戒指的代替的烷基链的增加的长度显然减少了。基于一样的阳离子，分离因素在阴离子顺序变化了[Tf2N ]-[PF6]-[BF4]-[C2H5SO4]- 。aromatics 的溶解度基于前者在离子的液体是更大的三个阴离子比那在包含的离子的液体[C2H5SO4 ]- 。

英文摘要：

The effects of the structure of typical cations and anions of ionic liquids on the separation of benzene and toluene from aromatic/paraffin mixtures were studied. The .results showed that the corresponding separation factors were considerably larger than those of the traditional solvents （Benzene＋Hexane＋sulfolane）, and that the ionic liquids could be used as novel solvents for the separation of aromatics from hydrocarbon mixtures. The key parameters governing the ability of ionic liquids for separating aromatics from hydrocarbon sources were investigated. It was found that the effectiveness of the ionic liquids, based on the same anion, changed in the cation order of [BIqu]^＋〈 [BPy]^＋〈 [BMIM]^＋. The selectivity of the ionic liquid toward aromatics decreased apparently with the increasing length of the substituted alkyl chain of its cationic head ring. The separation factors, based on the same cation, changed in the anion order of [Tf2N]^-〈[PF6]^-〈[BF4]^-〈[C2H5SO4]^-. The solubilities of the aromatics were greater in the ionic liquids based on the former three anions than that in the ionic liquids involving [C2H5SO4]^-.