Non-vitreous ceramic metal oxide microcapsules and process for making same

摘要: Shaped and fired, porous or impermeable nonvitreous ceramic microcapsules of metal oxide, preferably transparent polycrystalline, are made by a non-melt process comprising the liquid-liquid extraction aqueous oxide precursor with dehydrating liquid having limited water solubility, drying firing resulting gelled microcapsules. For example, an titania sol is added to agitated body n-butanol form dispersion droplets said rapidly extracted from microcapsules; latter recovered filtration, dried, fired convert them into transparent, sealed heat-sealable, non-vitreous ceramic, spherical polycrystalline titania. The can be used as fillers for plastic other composites filled selected solid, gas purpose storing, transporting, facilitating use same.