DISPERSION OF PARTICLES OF TITANIUM OXIDE WITH RUTILE STRUCTURE, METHOD OF ITS OBTAINING AND ITS APPLICATION Russian patent published in 2014 - IPC C01G23/53 C09C1/36 C08K3/22 C08L101/00 

FIELD: chemistry.

SUBSTANCE: invention can be used in chemical industry. Claimed is dispersion of particles of titanium oxide with rutile structure, in which particles of titanium oxide with rutile structure have D50 in the range from 1 to 15 nm and D90 40 nm or less in distribution of particles in size in its determination by method of dynamic light dispersion; specific surface area in the range from 120 to 180 m²/g in determination by BET method; and degree of mass loss 5% or less in its determination by heating particles of titanium oxide with rutile structure from 105°C to 900°C. Said dispersion of titanium oxide particles is obtained by method, which includes the first stage, at which water solution of titanium tetrachloride is heated and hydrolysed to obtain suspension, which contains sedimented particles of titanium oxide with rutile structure; the second stage, at which suspension, obtained at the first stage, is filtered and washed with water; the third stage, at which suspension, obtained at the second stage, is subjected to hydrothermal reaction in presence of organic acid, the fourth stage, at which suspension, obtained at the third stage, is filtered and washed with water; the fifth stage, at which acid is added to suspension, obtained at fourth stage, and obtained mixture is subjected to wet dispersion, thus obtaining dispersion; and the sixth stage, at which excessive acid and water-soluble salts are removed from dispersion, obtained at the fifth stage.

EFFECT: invention makes it possible to increase stability of titanium oxide dispersions.

9 cl, 1 dwg, 2 tbl, 6 ex