Acid leaching of manganiferous ores by sucrose: Kinetic modelling and related statistical analysis

This work reports the kinetic study of a manganiferous ore leaching in acid media by sucrose as reducing agent. nking core model with variable activation energy was found to successfully fit experimental data of manganese extraction yields vs leaching time. This model finds a physical confirmation both in the complex reactions that take place during manganese leaching and the different reactivity and accessibility of the mineralogical forms present in the ores. linear regression analysis has been performed in order to estimate the adjustable model parameters and a statistical analysis has also been carried out in order to evaluate the significativity of the estimated values.