Kinetics of sulfuric acid leaching of vanadium content converter slag calcinated with limestone

Primary kinetic parameters were determined: apparent activation energy, apparent reagent and solid phase orders, total constant K0'. Grinded products of sintering of vanadium-containing converter slag with limestone were used. The degree of vanadium leaching from the cake was calculated according to vanadium content in the solution. It is shown that apparent activation energy at different pH is practically the same and equals ∼ 28.0 kJ/mol