Continuous Counter-Current Ionic Liquid Metathesis in Mixer-Settlers: Efficiency Analysis and Comparison with Batch Operation.

ABSTRACT: Following the initial cation formation, the synthesis of ionic liquids (ILs) often involves an anion-exchange or metathesis reaction. For hydrophobic ILs, this is generally performed through several cross-current contacts of the IL with a fresh salt solution of the desired anion. However, if a large number of contacts is required to attain an adequate conversion, this procedure is not economical because of the large excess of the reagent that is consumed. In this study, the metathesis of an IL, Aliquat 336 or [A336][Cl], to ILs with other anions ([A336][X] with X = HSO₄ ^-, Br^-, NO₃ ^-, I^-, and SCN^-) was studied in a continuous counter-current mixer-settler setup. McCabe-Thiele diagrams were constructed to estimate

SUBMITTER: Vereycken W 

PROVIDER: S-EPMC8767539 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature