FIELD: inorganic chemistry. SUBSTANCE: titanium dioxide being heated preliminary to 120-250 C is treated with the help of wetted air. Expense of said air is 0,17-0,35 m3/kg, its temperature being 300-500 C. Air may be fed as mixture with steam of surface active substance (e.g. organic alcohol or amine), its quantity being 0.1-0.3 of titanium dioxide. During said treatment gaseous dispersion of titanium dioxide is affected by ultraviolet irradiation. EFFECT: improves efficiency of the method. 4 cl, 2 tbl
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