Kineticand thermodynamic aspects of flotation beneficiation of polymetallic raw materials

Mineral Processing Department, Mineral Raw Material Processing Faculty, Saint Petersburg Mining University, Russia

Abstract

The article presents the results of the development of a method-ological approach to the analysis of kinetic and thermodynamic parameters for improving the efficiency of flotation processing of polymetallic raw materials.The kinetic dependences of flotation, the hydrophobizing ability of butyl potassium xanthogenate, and the effect of reagents on preliminary mechanical activation were studied, and flotation modeling with and with-out an oxidizer was performed. The best results of convergence with the kinetic dependences of flotation are shown by the Beloglazov equation, the Kelsall and the modified Kelsall models. Technological indicators of sul-fide flotation in the presence of oxidants are higher, which can be ex-plained by the intensive oxidation of the formed transient ions on the sur-face of minerals, which contributes to the alignment of the flotation properties of the surface.It is possible to integrate the proposed research methods into technological schemes in order to optimize technological in-dicators and increase profits.