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首页> 外文会议>Conference on Supercritical Fluids and Their Applications >Recovery of Pure Products from Ionic Liquids using Supercritical Carbon Dioxide as Co-solvent in Extractions or as Anti-solvent in Precipitations
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Recovery of Pure Products from Ionic Liquids using Supercritical Carbon Dioxide as Co-solvent in Extractions or as Anti-solvent in Precipitations

机译：使用超临界二氧化碳作为共溶剂的离子液体从离子液体中恢复纯产品或促进中的抗溶剂

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摘要

Two advanced methods for separation and purification of products from ionic liquids by using supercritical carbon dioxide as co-solvent in extractions or as anti-solvent in precipitations are demonstrated. As an example, the recovery of the product N-acetyl-(S)-phenylalanine methyl ester (APAM) from the ionic liquid l-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) is studied experimentally On the one hand, CO2 can be used to extract APAM from the ionic liquid phase without any measurable ionic liquid contamination. On the other hand, CO2 can be used to precipitate APAM out of the ionic liquid phase and to wash the solid product Both methods are a solution to the problem of reccnering soluble and thermally labile products from ionic liquids and can be used to recover other products from ionic liquids in a simple and straightforward way, without contamination b the ionic liquid.
机译：证明了通过使用超临界二氧化碳作为萃取中的共溶剂的超临界二氧化碳的两种先进的方法，从属于离子液体作为共溶剂或沉淀的抗溶剂。作为一个例子，通过一方面研究了来自离子液体L-丁基-3-甲基-3-甲基咪唑鎓四氟硼酸盐（[BMIM] [BF4]）的产物N-乙酰基 - （S） - 苯基甲基甲基酯（APAM）的回收，CO 2可用于从离子液相中提取Apam，而无需任何可测量的离子液体污染。另一方面，CO 2可用于沉淀出离子液相的APAM，并洗涤固体产物，两种方法是从离子液体中溶解和热不稳定产物的问题的溶液，并且可用于恢复其他产品从离子液体以简单且直接的方式，没有污染B 离子液体。

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