Sulphatization of manganese slime from zinc electrolysis with ferrosulphate

The kinetics and mechanism of the sulphatization of manganese slime from th e zinc electrolysis with Fe(ll) sulphate was studied. The priority of chemi cal reactions was determined on the basis of the results of thermodynamic c alculations and experimental research. The sulphatization of manganese by F e(ll) sulphate was carried out in the temperature range 723-973 K. The kine tics of the process were determined by the analysis of dependence of the ma nganese sulphatization rate on time and temperature. It was established tha t manganese sulphatization is a diffusion and chemically controlled reactio n (mixed kinetics).