METHOD FOR PRODUCTION OF PURE NANODISPERSED POWDER OF TITANIUM DIOXIDE Russian patent published in 2012 - IPC C01B13/14 C01G1/02 B82B3/00 B82Y40/00 

FIELD: nanotechnologies.

SUBSTANCE: invention relates to a technology for production of nanodispersed materials and may be used in chemical industry, electronics, powder metallurgy. The method includes mixing of a pure solution of a precursor with alcohols supporting burning, spraying and combustion of a mixture in flame, at the same time the pure solution of the precursor is a pure acidulous aqueous solution of titanium tetrachloride, and alcohol content in a sprayed mixture makes at least 80% (wt), water - not more than 15% (wt). The size of drops of the sprayed mixture makes not more than 2 mcm.

EFFECT: method makes it possible to produce pure powders of nanodispersed titanium dioxide (not containing admixtures of carbon and low content of 0,01-0,03% chloride-ion) with particle size of less than 100 nm and higher chemical and catalytic activity.

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