The Influence of Crystal Seeds on the Particle Size Distribution of Hydrolysis Product of Titanyl Sulfate

Abstract

The hydrolysis product was prepared by added-seed thermal hydrolysis method with industrial titanyl sulfate solution. The influences of some factors (such as preheating temperature, sodium hydroxide concentration and activity of seeds) on the particle size and particle size distribution (PSD) of hydrolysis product were studied. The product was characterized by particle size analyzer and filtering property test. The results showed that all these factors had great impacts on PSD of product and its filtering property, the narrowest coefficient of variation (C.V.) was 43.0% and the fewest filtering time was 311s. The optimal conditions were as follows: preheating temperature was 90°C; NaOH concentration was 8.0-8.5%; activity of crystal seeds was 100-140 mL.