Estimation Criteria for Chemical Resistance of Minerals

摘要

Based on the analysis of estimation criteria for chemical resistance of nonferrous and rare metal minerals, it is found possible to predict properly their reactivity prior to their mechanical activation reasoning from their energy density, bond uniformity and power characteristic of cations of oxygen compounds. The authors propose relationships for determination of structural changes in noble metal minerals under mechanical activation, which ensure mineral opening in further hydrometallurgical treatment at below 100. These relationships are useful to pre-evaluate reactivity of minerals in order to select effective mechanical activation conditions.