REDUCTION OF MOLYBDENUM TRIOXIDE AND PRODUCTION APPARATUS OF LOW OXYGEN-CONTENT MOLYBDENUM POWDER

摘要

PROBLEM TO BE SOLVED: To provide a production apparatus for obtaining low oxygen-content molybdenum powders by reduction of molybdenum trioxide.SOLUTION: The production apparatus includes a body 100, a cover 110 to cover an upper end of the body, a joint 115 to couple the body with the cover, a bracket 120 located in the body, and a micro-sieve 130 located on an upper portion of the bracket. The micro-sieve is provided on the upper portion thereof with calcium granules 135 serving as a reducing agent and molybdenum trioxide powders 140 and is filled on the lower portion thereof with calcium granules 125 also serving as a reducing agent. Metal molybdenum powders having an oxygen content of 3,000 ppm or less can be obtained by using the apparatus.