A study of the kinetics of zinc stripping for the system Zn/H2SO4/D2EHPA/n-heptane in a Hancil constant interface cell and a rotating disc contactor

Studies have been made on the kinetics of zinc stripping for the Zn/H2SO4/D 2HPA/n-heptane system which is being considered as a Recommended System by the European Federation of Chemical Engineering (EFCE) Working Party on Dis tillation, Absorption and Extraction. A constant interface cell designed by Hancil has been used to determine chemical rate-controlling parameters and a five-compartment rotating disc contactor (RDC) of 0.152 m diameter has b een used with single drops to determine appropriate diffusional mass transf er coefficients. (C) 1998 Elsevier Science B.V. All rights reserved.