反应详情

A titanium sulfate solution was prepared by dissolving titanium-containing ore in sulfuric acid. This titanium sulfate solution was hydrolyzed to give aqueous titanium oxide, and added to 100 parts by mass (in terms of TiO2) of this aqueous titanium oxide were 0.50 parts by mass of ammonium phosphate, 0.30 parts by mass of potassium sulfate, and 0.30 parts by mass of aluminum sulfate. The resulting mixture was heated in a laboratory rotary muffle furnace until the product temperature reached 1020° C. The resulting titanium dioxide fine particles were allowed to cool to room temperature and were observed on a transmission electron microscopic photograph that the particles were an anatase type and had an average primary particle diameter of 0.13 μm.