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The kinetics of zinc extraction and stripping have been investigated for the ZnSO 4 /D2EHPA/diluent system (D2EHPA=di(2-ethylhexyl) phosphoric acid), which is under consideration as a proposed reactive extraction liquid-liquid test system by the European Federation of Chemical Engineering. Data in low and high concentration domains have been fitted to chemical kinetic and kinetic-diffusive...
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