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METHOD OF PRODUCING COATED PARTICLE POWDER, AND METHOD OF PRODUCING DISPERSION CONTAINING COATED PARTICLE POWDER AND DISPERSION MEDIUM
To provide means of producing coated particle powder capable of imparting excellent dispersibility upon being dispersed in a medium.SOLUTION: There is provided a method of producing coated particle powder, comprising a process (A) of spray-drying a raw material dispersion containing particles composed of an oxide, a carbide, a nitride, metal, or an organic material, a water soluble metal salt, and water to produce particle aggregate (a), a process (B) of heat-treating the particle aggregate (a) at a temperature of not lower than 300°C and not higher than 750°C to produce particle aggregate (b), and a process (C) of crushing the particle aggregate (b) to produce coated particles (c).SELECTED DRAWING: Figure 1
【課題】本発明は、媒体に分散させた際の高い分散性を付与しうる被覆粒子粉体を製造する手段を提供する。【解決手段】本発明は、酸化物、炭化物、窒化物、金属または有機物からなる粒子と、水溶性金属塩と、水とを含む原料分散体をスプレードライして粒子集合体（ａ）を得る工程（Ａ）と、前記粒子集合体（ａ）を３００℃以上７５０℃以下の温度で熱処理して粒子集合体（ｂ）を得る工程（Ｂ）と、前記粒子集合体（ｂ）を粉砕することにより、被覆粒子（ｃ）を得る工程（Ｃ）と、を有する、被覆粒子粉体の製造方法に関する。【選択図】図１
METHOD OF PRODUCING COATED PARTICLE POWDER, AND METHOD OF PRODUCING DISPERSION CONTAINING COATED PARTICLE POWDER AND DISPERSION MEDIUM
To provide means of producing coated particle powder capable of imparting excellent dispersibility upon being dispersed in a medium.SOLUTION: There is provided a method of producing coated particle powder, comprising a process (A) of spray-drying a raw material dispersion containing particles composed of an oxide, a carbide, a nitride, metal, or an organic material, a water soluble metal salt, and water to produce particle aggregate (a), a process (B) of heat-treating the particle aggregate (a) at a temperature of not lower than 300°C and not higher than 750°C to produce particle aggregate (b), and a process (C) of crushing the particle aggregate (b) to produce coated particles (c).SELECTED DRAWING: Figure 1
【課題】本発明は、媒体に分散させた際の高い分散性を付与しうる被覆粒子粉体を製造する手段を提供する。【解決手段】本発明は、酸化物、炭化物、窒化物、金属または有機物からなる粒子と、水溶性金属塩と、水とを含む原料分散体をスプレードライして粒子集合体（ａ）を得る工程（Ａ）と、前記粒子集合体（ａ）を３００℃以上７５０℃以下の温度で熱処理して粒子集合体（ｂ）を得る工程（Ｂ）と、前記粒子集合体（ｂ）を粉砕することにより、被覆粒子（ｃ）を得る工程（Ｃ）と、を有する、被覆粒子粉体の製造方法に関する。【選択図】図１
METHOD OF PRODUCING COATED PARTICLE POWDER, AND METHOD OF PRODUCING DISPERSION CONTAINING COATED PARTICLE POWDER AND DISPERSION MEDIUM
被覆粒子粉体の製造方法、ならびに当該被覆粒子粉体および分散媒を含む分散体の製造方法
ISAYAMA TAKUYA (author)
2019-04-25
Patent
Electronic Resource
Japanese
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