Hydrolysis scale depolymerization method

The invention discloses a hydrolytic scale depolymerization method, relates to the technical field of hydrolytic scale recovery, and solves the problems of large waste of titanium resources and low economic benefit of the existing hydrolytic scale treatment method. The method comprises the following steps: S1, crushing hydrolyzed scale by a jaw crusher; s2, mixing the crushed hydrolyzed scale material with a ball milling medium, adding a dispersing agent and desalted water, and carrying out ball milling; s3, pulping and dispersing the ground material, and feeding the material into a grinding machine for further depolymerization to obtain a depolymerized material; s4, adding 10-20wt% of soluble barium salt into the depolymerized material according to the amount of titanium dioxide, and carrying out solid-liquid separation to obtain a chemical depolymerized material; and S5, rinsing the chemical depolymerized material to obtain rinsed metatitanic acid for subsequent recycling. According to the method, the depol