PRODUCTION OF INORGANIC OXIDE

摘要

PURPOSE:To make it possible to uniform particle size of fine particles in carrying out hydrolysis and condensation reaction by feeding an organometallic compound and a prepared alkali aqueous solution required for the hydrolysis of the organometallic compound to an alkaline organic solvent, by controlling hydrolyzing and condensation reaction rates. CONSTITUTION:A hydrolyzable organometallic compound having a MOR (M is metal; R is organic group) structure comprising an element of group I-IV of the periodic table and a prepared alkaline aqueous solution required for hydrolysis are respectively dissolved in an organic solvent. Both the solutions are fed at any rates to a previously prepared hydrous alkaline organic solvent in a reactor. The reactor is stirred from the beginning of feed to the end of the reaction and particles are grown until the particles reaches the aimed parti cle diameter. By this method, inorganic particles fine powder having any size in a range from 0.1mu - several mu and uniform particle diameter are obtained.