Zirconium oxychloride pyrolysis method: zircon and caustic soda are melted at 650℃, hot water is leached out of the melt, and silicon is separated from sodium zirconate in the form of sodium silicate.
After treatment with sulfuric acid, a zirconium sulfate solution is obtained. After further removing impurities, ammonia water is added to precipitate zirconium hydroxide. Add hydrochloric acid to dissolve zirconium hydroxide to obtain zirconium oxychloride.
After evaporation, concentration, cooling, crystallization, pulverization, and roasting, zirconium dioxide is obtained as a finished product; in addition, zirconium compounds that are easy to be purified can be thermally decomposed or oxidized to prepare high purity Zirconia.
