| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing modified metal oxide particulate powder excellent in dispersibility, flowability and economical efficiency.SOLUTION: There is provided the method for producing modified metal oxide particulate powder which has an average particle diameter (D) in the range of 1 to 200 μm, which is composed of aggregates of primary particle and secondary particle, which has an average secondary particle diameter (D) of the secondary particles measured by laser method in the range of 5 to 500 nm, an average primary particle diameter (D) of the primary particles measured by observing with TEM method in the range of 5 to 500 nm, a ratio (D)/(D) of the average secondary particle diameter (D) to the average primary particle diameter (D) in the range of 1 to 10, and an angle of repose of 40° or less. The method for producing modified metal oxide particulate powder comprises: (a) preparing a fluid dispersion of metal oxide particulate in water and/or organic solvent followed by (b) adding an organic metal compound represented by R-MXto the fluid dispersion; then (d) atomizing and drying the fluid dispersion. |
