Thermodynamics of the interaction between chromate ions and a mineral complex of polymetallic ores. Galena

Interaction thermodynamics of sulfides of heavy nonferrous metals with sulfhydril collectors for incomplete information on the standard formation energies of starting substances and reaction products (by the example of galenite)

“…One method for evaluating the formation condi tions of the sorption layer of the sulfhydril collector on the sulfide mineral surface, particularly galenite, is the thermodynamic method [9][10][11]. This method allows us to calculate the reaction conditions of the mineral with the sulfhydril collector at its known concentra tions, the magnitude of pH, and the redox potential of the liquid phase of the mineral suspension.…”

“…Despite certain limitations, this method has found rather wide application for analyzing the interaction conditions for almost all industrial sulfide minerals of copper, lead, zinc, nickel, and iron, primarily with butyl xanthate ions [9][10][11]. This manifested itself in constructing and analyzing the thermal stability dia grams of various systems of the PbS-H 2 O-CO 2 -C 4 H 9 OCSStype [10,11].…”

“…This manifested itself in constructing and analyzing the thermal stability dia grams of various systems of the PbS-H 2 O-CO 2 -C 4 H 9 OCSStype [10,11].…”

“…When considering the structure of thermodynamic stability diagrams of minerals of nonferrous metals in the presence of potassium butyl xanthate [9][10][11], we can distinguish four types of reactions with the partic ipation of its ions:…”

“…There are the thermodynamic data on the forma tion energies for all participants of these processes [13][14][15], which make it possible to construct the ther modynamic stability diagram for the PbS-H 2 O-CO 2 -C 4 H 9 OCSSsystem [9][10][11]16].…”