PRODUCTION OF LITHIUM TITANATE NANO-SIZED POWDER Russian patent published in 2014 - IPC C01G23/00 C01D15/00 B82B1/00 B82Y99/00 

FIELD: metallurgy.

SUBSTANCE: proposed method comprises making the mix of titanium and lithium compounds to be heat treated, heat treatment products being annealed. Beforehand, said titanium tetrachloride solution is subjected to salt hydrolysis in boiling solution of said tetrachloride at 120÷150°C. Then, formed pulp is filtered to flush obtained precipitate with solution of alkaline agent. The latter is selected from the group consisting of ammonia carbonate, ammonia hydroxide, lithium carbonate, lithium hydroxide. Now, it is flushed with water and dried. Lithium compound with titanium and lithium is selected from the group including: lithium carbonate, hydroxide, oxalate, acetate and mixes thereof. Then, heat treatment is performed at 400-500°C under pyrolysis conditions. Annealing of heat treated mix at conducted at 800-900°C for 5 hours.

EFFECT: simplified production of nanosized particles of spinel-structure powders of lithium titanate Li₄Ti₅O₁₂.

5 cl, 3 dwg, 2 tbl, 1 ex