The factor by which the ratio of two substances in the feed must be multiplied to give their ratio after treatment.
where
and
are the final and initial amounts of species
A
and
and
are the final and initial amounts of species
B.
Hence
where
is the
fraction extracted.
In terms of
,
,
(where
is the number of stages and
the phase ratio),
Source:
PAC, 1993, 65, 2373
(Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993))
on page 2382
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
doi:10.1351/goldbook.
in liquid-liquid distribution
