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首页> 外文期刊>Separation and Purification Technology >Highly efficient extraction of phenols and aromatic amines into novel ionic liquids incorporating quaternary ammonium cation
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Highly efficient extraction of phenols and aromatic amines into novel ionic liquids incorporating quaternary ammonium cation

机译：将含有季铵阳离子的新型离子液体高效萃取酚和芳香胺

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摘要

Two novel hydrophobic room temperature ionic liquids (RTIL) incorporating quaternary ammonium cations: tetrahexylammonium dihexylsulfosuccinate (THADHSS) and trioctylmethylammonium salicylate (TOMAS) have been obtained. The mutual solubility of the both RTILs with water and their Reichardt's polarity index have been measured. The extraction of aromatic amines and phenols into novel RTILs and two 1 -alkyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amides has been studied. The dependences of RTIL-water distribution ratio for the studied liquids on the phase volume ratio, the time of phase contact, pH value of aqueous solutions and the solute concentration have been obtained. In some cases, the solute distribution ratios for ammonium-based RTILs are as high as n x 10~4 that is much greater than for imidazolium ones. Notably, unlike the case of imidazolium-based RTILs, the quantitative extraction into ammonium RTILs is achieved even at the phase volume ratio V_(rtil): V_w = 1:20.
机译：已经获得了两种结合了季铵阳离子的疏水性室温离子液体（RTIL）：四己基铵二己基磺基琥珀酸酯（THADHSS）和三辛基甲基水杨酸铵（TOMAS）。已经测量了两种RTIL与水的互溶性和它们的莱卡德极性指数。研究了将芳香胺和酚类提取到新型RTILs和两个1-烷基-3-甲基咪唑鎓双（三氟甲磺酰基）酰胺中的方法。得到了所研究液体的RTIL-水分配比与相体积比，相接触时间，水溶液的pH值和溶质浓度的关系。在某些情况下，基于铵的RTIL的溶质分布比高达n x 10〜4，远大于咪唑鎓的溶质分布比。值得注意的是，与基于咪唑的RTIL的情况不同，即使在相体积比V_（rtil）：V_w = 1:20的情况下，也可以定量提取到铵RTIL中。

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