23 European Symposium on Computer Aided Process Engineering: Modeling of Gold Leaching with Thiosulphate Solutions in Different Types of Reactor (Computer Aided Chemical Engineering)

Gold leaching process with thiosulphate solutions is an important process of considerable significance for environmental and economic aspects of sustainability. Thiosulphate leaching helps reduce risks of environmental pollution in comparison with cyanidation, thus limiting negative societal effects, but complexity of the process chemistry still requires investigation and modeling. The objective of this work is to create models of gold leaching in various types of rectors. The results show that batch reactor model fits to experimental data, continuous reactor model allows utilizing it in scheme of series of apparatuses and cascade reactor model makes it possible to evaluate optimal number of reactors in series.