FIELD: metallurgy, namely production of refractory metal alloys by out-of-furnace aluminothermic reduction.
SUBSTANCE: process comprises steps of preparing charge of compound of refractory metal, aluminum and oxides of alkali-earth metals; placing charge in metallic crucible on surface of ignition mixture of alkali-earth metal peroxide and aluminum; reducing it and melting; adding to charge in addition waste material of previous melting and chlorate while providing relation of aluminum powder to peroxide of alkali-earth metal in ignition mixture 4 : 1.
EFFECT: enhanced degree of metal transition to alloy, lowered impurity content such as carbon, reduced explosion hazard of process.
5 ex
