Use of Ionic Liquids and Binary Extractants in Extraction

A short review of the literature data on extraction with hydrophobic bifunctionalized ionic liquids and binary extractants is given to show that these compounds are identical in their compositions and properties. It is noted that the papers on binary extractants were published earlier than the first papers on extraction with bifunctionalized ionic liquids. In contrast to the extraction systems with ionic liquids, extraction processes in the systems with binary extractants are studied in greater detail and grouped into a special class, i.e., binary extraction. It is shown that the main regularities of the distribution of the components in the extraction systems with binary extractants depend on the type of chemical reaction and the character of the interphase distribution.