countercurrent extraction

https://doi.org/10.1351/goldbook.10170
Extraction in which both phases are continuously added (or changed) and flow (or move) in opposite directions as the extraction progresses.
Note: The phases are either immiscible or separated by a membrane.
Source:
PAC, 2016, 88, 517. (Glossary of terms used in extraction (IUPAC Recommendations 2016)) on page 522 [Terms] [Paper]
Citation: 'countercurrent extraction' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.10170 RIS BibTex EndNote
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