Physicochemical modeling and experimental study of the interaction in the Si-Al-Ca-Mg-Fe-Na-K-V-Cl-H-O system

Physicochemical modeling is used to study the interaction in the SiO2-Al2O3-CaO-MgO-Fe3O4-Na2O-V2O3(V2O5)-HCl-H2O system. The regions of formation of calcium (magnesium, iron) vanadates and various vanadium oxides are determined. The conditions for the most complete extraction of vanadium into hydrochloric acid solutions are estimated. The data obtained can be used to develop the procedure a the extraction of vanadium during the leaching of basalt with hydrochloric acid.