A MANUFACTURING METHOD OF ANATASE CRYSTALIZED TIO2-SIO2 MIXED POWDER AND ANATASE CRYSTALIZED TIO2-SIO2 MIXED POWDER MANUFACTURED USING THE SAME

摘要

PURPOSE: A manufacturing method of a TiO2-SiO2 compound powder which has anatase crystalline and is safe for human body and the TiO2-SiO2 compound powder having anatase crystalline manufactured by the same are provided to mix TiO2 nanopowder with SiO2 nanopowder at an optimal ratio. CONSTITUTION: A manufacturing method of a TiO2-SiO2 compound powder having anatase crystalline comprises the following steps: manufacturing a TiO2-SiO2 compound powder suspension which includes 50-80 wt% of TiO2 powder and 20-50 wt% of SiO2 powder; manufacturing droplets by spraying the TiO2-SiO2 compound powder suspension; drying the TiO2-SiO2 compound powder droplet; collecting the dried TiO2-SiO2 compound powder; and heat treating the collected TiO2-SiO2 compound powder. The TiO2 powder and SiO2 powder in the first step are in nanoparticle form. The heat treating in the fifth step includes the following step: charging the collected TiO2-SiO2 compound powder in a tube type electric furnace which is preheated to 700-900 deg. Celsius, and performing the heat treating for 300 minutes while passing air in the furnace.