Type of continuous multi-stage liquid-liquid distribution equipment in which each stage has a physically distinct cycle of interphase contact and separation.
Note: There are the same number of phase separation interfaces as there are stages.
Source:
PAC, 2016, 88, 517. 'Glossary of terms used in extraction (IUPAC Recommendations 2016)' on page 536 (https://doi.org/10.1515/pac-2015-0903)