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    • 84. 发明授权
    • Method for producing molybdenum metal powder
    • 钼金属粉末的制造方法
    • US08147586B2
    • 2012-04-03
    • US12338779
    • 2008-12-18
    • Loyal M. Johnson, Jr.Sunil Chandra JhaPatrick Ansel Thompson
    • Loyal M. Johnson, Jr.Sunil Chandra JhaPatrick Ansel Thompson
    • B22F9/22
    • B22F9/22B22F1/0011B22F1/0014
    • Method for producing molybdenum metal powder. The invention includes introducing a supply of ammonium molybdate precursor material into a furnace in a first direction and introducing a reducing gas into a cooling zone in a second direction opposite to the first direction. The ammonium molybdate precursor material is heated at an initial temperature in the presence of the reducing gas to produce an intermediate product that is heated at a final temperature in the presence of the reducing gas, thereby creating the molybdenum metal powder comprising particles having a surface area to mass ratio of between about 1 m2/g and about 4 m2/g, as determined by BET analysis, and a flowability of between about 29 s/50 g and 86 s/50 g as determined by a Hall Flowmeter. The molybdenum metal powder is moved through the cooling zone.
    • 钼金属粉末的制造方法。 本发明包括将第一方向的钼酸铵前体材料供应到炉中,并且在与第一方向相反的第二方向上将还原气体引入冷却区。 钼酸铵前体材料在还原气体的存在下在初始温度下加热,以产生在还原气体存在下在最终温度下加热的中间产物,从而产生包含具有表面积的颗粒的钼金属粉末 通过BET分析测定的约1m 2 / g至约4m 2 / g之间的质量比和通过霍尔流量计测定的约29s / 50g和86s / 50g之间的流动性。 钼金属粉末通过冷却区移动。