Patent Number: 7,785,390

Title: Molybdenum metal powder and production thereof

Abstract: Molybdenum metal powder has surface-area-to-mass-ratios in a range of between about 1.0 meters.sup.2/gram (m.sup.2/g) and about 3.0 m.sup.2/g, as determined by BET analysis, in combination with a particle size wherein at least 30% of the particles are larger than a size +100 standard Tyler mesh sieve. A method for producing molybdenum metal powder includes providing a supply of ammonium molybdate and a reducing gas; causing an exothermic reaction between the ammonium molybdate and the reducing gas at a first temperature to produce an intermediate reaction product and a supplemental reducing gas; causing an endothermic reaction between the intermediate reaction product and the reducing gas at a final temperature to produce the molybdenum metal powder.

Inventors: Johnson, Jr.; Loyal M. (Tuscon, AZ), Jha; Sunil Chandra (Oro Valley, AZ), Cox; Carl (Tucson, AZ), Thompson; Patrick Ansel (Tucson, AZ)

Assignee: Climax Engineered Materials, LLC

International Classification: B22F 1/00 (20060101); B22F 9/18 (20060101)

Expiration Date: 8/31/12018