A predictive model, which consists of a set of non-linear mass action and m
ass balance equations solved by using a tailor-made equation-solving progra
m, is used as a basis to predict experimentally measured distribution coeff
icients for the CuSO4-H2SO4-MOC 80TD-lberfluid liquid-liquid extraction sys
tem at 20 degreesC and aqueous copper concentrations in the range 0.1-1.0 g
l(-1). The model is also used to obtain the copper loading isotherm at var
ious initial aqueous pH values.