Continuous Processing of Monodispersed Titania Powders

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Abstract
A new continuous precipitation process for monodispersed ceramic powders using a static mixer was developed. Monodispersed TiO2 powders were prepared continuously with high reproducibility and reliability by controlled hydrolysis of titanium ethoxide. Important steps were uniform and rapid mixing and aging using hydroxypropylcellulose as a dispersant. The concentrations of titanium ethoxide and water suitable to production of monodispersed TiO2 powders lay within a limited range. A minimum aging period of 10 min was required to obtain monodispersed powders.