Process proceeding under reduction and alloy formation in MoO3-WO3-H2 system

Concentration and temperature dependences of the alloy formation processes in the Mo-W system are studied at different reduction temperature of these metals from mixed oxides. A direct relation is established between velocity of the mutual solution of molybdenum and tungsten with homogeneity degree of the initial materials and with reduction conditions of the metals from mixed oxides. Homogeneity degree of the Mo-W alloy at decreased temperatures increases with impprovements of mixing conditions for initial molybdenum and tungsten trioxides. Optimal temperature conditions for reduction of metals are those which provide simultaneous reduction of the both components with close specific velocities of the reaction. Concentration and temperature dependences of the alloy formation processes on the molybdenum and tungsten content in the alloy are established which agree with partial diffusion coefficients in this system