Premium
Continuous Processing of Monodispersed Titania Powders
Author(s) -
Ogihara Takashi,
Ikeda Masaki,
Kato Masanori,
Mizutani Nobuyasu
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb06288.x
Subject(s) - dispersant , materials science , titanium , ceramic , precipitation , chemical engineering , hydrolysis , mixing (physics) , metallurgy , chemistry , dispersion (optics) , organic chemistry , engineering , physics , quantum mechanics , meteorology , optics
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.