METAL COMPOUND POWDER PRODUCING DEVICE

摘要

PURPOSE:To provide a metal compd. producing device suitable to produce a metal compd. powder appropriate as the raw material for the fine ceramic, magnetic toner and magnetic recording medium and having a specified grain diameter. CONSTITUTION:A producing device 1 consists of a heating furnace 3, a reaction vessel 2 to be charged with a raw powder 13 including metal powder and a crushing medium 14 and a means 4 for rotating the vessel 2. A reactive gas and a carrier gas are introduced into the vessel 2 through a gas inlet 5 and discharged outside the reaction system from a gas outlet 6. The raw powder 13 is allowed to react with the reactive gas and simultaneously cracked or crushed by the medium 14, hence the sintering is forcedly released, and a large amt. of metal compd. powder having about 1 grain diameter is easily obtained.