PRODUCTION OF BARIUM TITANATE POWDER BY USING TITANIUM 2-ALKOXYETHOXIDE PRECURSOR FOR THERMAL REACTION

摘要

PURPOSE: A process for preparing barium titanate powder by the hydrothermal reaction of a titanium organic metal compound with a barium salt is provided which gives the superfine barium titanate powder at a relatively low temperature. CONSTITUTION: A process for producing a stoichiometric quantity of barium titanate useful in the field of electronics comprises the steps of diluting a titanium 2-alkoxyethoxide precursor in an organic solvent, forming a barium-titanium complex by mixing with an aqueous solution of a barium salt, carrying out hydrothermal reaction after addition to a concentrated alkali solution at a pH higher than 14, and purifying through washing processes. The process can produce the title compound with a uniform particle size without using a high-temperature electric furnace.