Application of shrinking core model to bioleaching of black shale particles

was 84%, and the surface area of the ore increased from 4.50 m 2 /g to 13.74 m 2 /g. Based on the shrinking core model, a new model describing bioleaching of the black shale type ore in a column is proposed. The model is based on assumption of dependence of copper recovery and surface area increase during the process.