Information about methods of preparation, structure and physical-chemical properties of nanostructured materials based on lithium and sodium titanates was analyzed and summarized. The functional nanostructured composite materials based on sodium and lithium titanates to produce an anode material with high capacity and working stable potential in the course of cycling with optimal electronic and ionic conductivity were examined. Examples of specific schemes, physical-chemical properties and the mechanism of functional processes by using bioactive and doped components were presented.

Conditions for the reduction of titaniummagnetite concentrates (main components are Fe 52-54 % and TiO 2 5-7 %) by natural gas for obtaining iron powder and titanium fraction were studied. Based on the theory of granulation in the drum apparatus, granules with 25 % of soda fluxing additive with optimum diameter, humidity, strength and porosity were obtained. It was found that the reduction reactions in the temperature range of 1143-1198 K are carried out if a mixture of hydrogen and carbon monoxide is added to the natural gas in amount of 15 vol %. Block-diagrams for processing titaniummagnetite concentrates for the production of iron powder α-Fe (purity 99 %), anatase and rutile modifications of titanium dioxide (99 % TiO 2 ) and titanium with a purity of 99% are presented.

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Non-equilibrium and equilibrium thermodynamic conditions of direct reduction of magnetite to free iron and oxidation of vanadium (3) to vanadium (5) in granules fluxed by soda vanadist titanomagnetite concentrates using a mixture of natural gas and hydrogen were determined. To determine temperature dependences of Gibbs free energy of redox reactions, the Temkin-Schwartsman equation was modified with due regard for the Gibbs free energy of formation of magnetite-based substitution solid solutions and the vapor pressure of the components in the flow system where the mixture of methane and hydrogen is continuously fed while gaseous reaction products are removed. 3D modeling of the Gibbs free energy difference of reactions proceeding under equilibrium and non-equilibrium conditions was carried out. On the basis of the free energy of the system deviation from the equilibrium state, it revealed that the greatest effect of reducing the temperature of redox reactions is observed in terms of low values of the reaction products pressure As a result of the thermodynamic analysis, the temperature range of 950-970K was chosen to produce metallic iron and sodium vanadate.

The conditions for purification and waste-free utilization of the vanadate fraction of processing Ajinaur titanomagnetite concentrates in Azerbaijan by the carbonization method, including desiliconization, extraction of aluminum, regeneration of sodium carbonate and production of vanadium pentoxide, have been determined. It was found that TABAC (three alkylbenzylammonium chloride) is an effective extractant for extracting vanadium from carbonate – vanadate solutions without destroying carbonate ions. A technological scheme for processing carbonate-alkaline vanadate solutions to obtain vanadium pentoxide of reactive purity 99.7% corresponding in the quality to the analytical grade, -Al2O3 and soda regeneration has been drawn up