perstraction

https://doi.org/10.1351/goldbook.PT06881
Separation process in which membrane permeation and extraction phenomena occur by contacting the downstream with an extracting solvent.
Source:
PAC, 1996, 68, 1479. 'Terminology for membranes and membrane processes (IUPAC Recommendations 1996)' on page 1484 (https://doi.org/10.1351/pac199668071479)