Hydrolysis method: use zirconium oxychloride as raw material to hydrolyze to prepare high-purity ultra-fine zirconium dioxide, hydrolyze the 0.2-0.3 mol/L high-purity zirconium oxychloride solution with deionized water, and boil the zirconium oxychloride solution for a long time.
The hydrogen chloride generated by the hydrolysis is continuously evaporated and removed, and the hydrolysis reaction is carried out at boiling for more than 50 h, and then filtered, washed with deionized water, dried, calcined and crushed to obtain the product.
