A new continuous precipitation process for monodispersed ceramic powders using a static mixer was developed. Monodispersed TiO 2 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 TiO 2 powders lay within a limited range. A minimum aging period of 10 min was required to obtain monodispersed powders.
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Ogihara et al. (1989) studied this question.
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