PRODUCTION OF TITANIUM OXINITRIDE-BASED INORGANIC MATERIAL Russian patent published in 2014 - IPC C01G23/00 C22B7/04 

FIELD: metallurgy.

SUBSTANCE: production of titanium oxinitride TiN_0.35-0.7O_0.4-0.6 comprises combustion of titanium-bearing charge in self-propagating high-temperature synthesis in nitrogen at 40-150 atm. Said titanium-bearing charge is composed by titanium production wastes as titanium fire cutting minced slag and that of its alloy of minus 0.5 mm fraction containing titanium, nitrogen, oxygen and mechanical impurities of titanium oxides. On using the titanium fire cutting minced slag and its alloys containing more than 5 wt % of titanium oxide mechanical impurities, additionally titanium chips or its alloys or titanium powder are added to the charge in amount of 0.5-1 portions with respect to excess amount of titanium oxide mechanical impurities in the charge.

EFFECT: homogeneous high-quality ingots.

2 cl, 1 dwg, 2 tbl, 1 ex