METHOD OF PRODUCING NANOPOWDER ZIRCONIUM, YTTRIUM AND TITANIUM COMPOSITE OXIDE Russian patent published in 2014 - IPC C01G25/02 C01G23/53 C01F17/00 B82B1/00 B82Y30/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in production of dense wear-resistant ceramic and solid electrolytes. The method of producing powder of a zirconium, yttrium and titanium composite oxide involves preparing a starting solution of nitrates, adding an organic acid and a titanium-containing compound into said solution, followed by heat treatment. The organic acid used is glycine in amount of 1.6-2.5 mol per 1 g-atom of the sum of metal cations (Zr⁺⁴+Ti⁺⁴+Y⁺³). The titanium-containing compound used is a hydrolysable titanium compound with the ratio Zr⁺⁴:Ti⁺⁴=(0.99-0.85):(0.15-0.01). The starting solution is further mixed with 30% hydrogen peroxide with the ratio H₂O₂:Ti⁺⁴=(4.7-12):1. The hydrolysable titanium compound used can be titanium tetrabutylate or titanium sulphate or titanium tetrachloride.

EFFECT: invention prevents waste discharge, reduces power consumption and simplifies production of nanopowder of a zirconium, titanium and yttrium composite oxide.

3 cl, 3 ex