METHOD OF PRODUCING TITANIUM DIOXIDE PARTICLES AND TITANIUM DIOXIDE PARTICLE Russian patent published in 2013 - IPC C01G23/07 B22F9/28 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry, particularly production of titanium dioxide via oxidation of liquid titanium tetrachloride. The liquid titanium tetrachloride is fed into a reactor with an oxygen-containing gas in at least two steps. At the first step, an amount of titanium tetrachloride needed to trigger oxidation is fed. The number of steps and distribution of the amount of titanium tetrachloride on the steps are established depending on the adiabatic temperature of the mixture of starting substances, calculated for each step and ensuring spontaneous flow of the reaction.

EFFECT: method provides uniform distribution of titanium tetrachloride and, consequently, homogeneous conditions for the flow of the reaction and fewer coarse particles in the pigment.

9 cl, 6 dwg, 2 ex