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公开(公告)号：US07785390B2
公开(公告)日：2010-08-31
申请号：US11838638
申请日：2007-08-14
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Molybdenum metal powder has surface-area-to-mass-ratios in a range of between about 1.0 meters2/gram (m2/g) and about 3.0 m2/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.
摘要翻译： 钼金属粉末通过BET分析测定的表面积与质量比在约1.0m 2 / g（m 2 / g）至约3.0m 2 / g之间的范围内，与至少 30％的颗粒大于+100标准泰勒筛网。 一种生产钼金属粉末的方法包括：提供钼酸铵和还原气体; 在第一温度下引起钼酸铵和还原气体之间的放热反应，产生中间反应产物和补充还原气体; 在最终温度下引起中间反应产物和还原气体之间的吸热反应以产生钼金属粉末。
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公开(公告)号：US07276102B2
公开(公告)日：2007-10-02
申请号：US10970456
申请日：2004-10-21
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Molybdenum metal powder, and method for production thereof. Molybdenum metal powder has surface-area-to-mass-ratios in a range of between about 1.0 meters2/gram (m2/g) and about 3.0 m2/g, as determined by BET analysis, in combination with a particle size wherein at least 30% of the particles have a particle size larger than a size +100 standard Tyler mesh sieve. In addition, molybdenum metal powder 10 may be further distinguished by flowability in a range of between about 29 seconds/50 grams (s/50 g) and about 64 s/50 g, as determined by a Hall Flowmeter. A method of producing molybdenum powder may comprise providing a supply of ammonium molybdate, heating the ammonium molybdate at an initial temperature in the presence of a reducing gas to produce an intermediate product, and heating the intermediate product at a final temperature in the presence of the reducing gas, producing molybdenum metal powder.
摘要翻译： 钼金属粉末及其制造方法。 钼金属粉末的表面积与质量比在约1.0m 2 / g（m 2 SUP / g以下）范围内，约3.0μm 通过BET分析测定，与颗粒尺寸相结合，其中至少30％的颗粒具有大于+100标准泰勒筛网的粒度。 此外，通过霍尔流量计测定的钼金属粉末10可以进一步区别在约29秒/ 50克（s / 50克）至约64秒/ 50克之间的流动性。 制备钼粉末的方法可以包括提供钼酸铵供应，在还原气体存在下在初始温度下加热钼酸铵以产生中间产物，并在最终温度下在中间产物存在下加热中间产物 还原气体，生产钼金属粉末。
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公开(公告)号：US08043405B2
公开(公告)日：2011-10-25
申请号：US12338827
申请日：2008-12-18
IPC分类号： C22C27/04
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Densified molybdenum metal powder. Densified molybdenum metal powder has substantially generally spherical particles, surface-area-to-mass ratio of no more than about 0.5 m2/g as determined by BET analysis, and a flowability greater than about 32 s/50 g as determined by a Hall Flowmeter.
摘要翻译： 致密的钼金属粉末。 致密的钼金属粉末具有通过BET分析确定的基本上通常为球形的颗粒，表面 - 质量比不超过约0.5m 2 / g，并且通过霍尔流量计测定的大于约32s / 50g的流动性 。
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公开(公告)号：US07524353B2
公开(公告)日：2009-04-28
申请号：US11356938
申请日：2006-02-17
IPC分类号： B22F9/22
CPC分类号： B22F1/0011 , B22F1/0014 , B22F9/22 , C22C27/04
摘要： Densified molybdenum metal powder and method for producing same. Densified molybdenum powder has substantially generally spherical particles, surface area to mass ratio of no more than about 0.5 m2/g as determined by BET analysis, and a flowability greater than about 32 s/50g as determined by a Hall Flowmeter. A method for producing densified molybdenum metal powder includes providing a supply of precursor material of molybdenum metal powder particles reduced from ammonium molybdate; providing a supply of reducing gas; densifying the precursor material in the presence of the reducing gas; and producing the densified molybdenum metal powder.
摘要翻译： 致密的钼金属粉末及其制造方法。 致密的钼粉末通过BET分析测定的基本上通常为球形的颗粒，表面积与质量比不超过约0.5m 2 / g，通过霍尔流量计确定的流动性大于约32s / 50g。 一种生产致密化的钼金属粉末的方法包括提供从钼酸铵还原的钼金属粉末颗粒的前体材料; 提供减量气供应; 在还原气体存在下使前体材料致密化; 并生产致密的钼金属粉末。
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公开(公告)号：US08043406B2
公开(公告)日：2011-10-25
申请号：US12338863
申请日：2008-12-18
IPC分类号： C22C27/04
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Molybdenum metal powder. Molybdenum metal powder includes molybdenum metal 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.
摘要翻译： 钼金属粉末。 钼金属粉末包括通过BET分析测定的表面积与质量比在约1m 2 / g至约4m 2 / g之间的表面积与质量比的钼金属颗粒和流动性在约29s / 50g和86 s / 50 g，由霍尔流量计确定。
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公开(公告)号：US20090098010A1
公开(公告)日：2009-04-16
申请号：US12338863
申请日：2008-12-18
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Molybdenum metal powder. Molybdenum metal powder includes molybdenum metal 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.
摘要翻译： 钼金属粉末。 钼金属粉末包括通过BET分析测定的表面积与质量比在约1m 2 / g至约4m 2 / g之间的表面积与质量比的钼金属颗粒和流动性在约29s / 50g和86 s / 50 g，由霍尔流量计确定。
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公开(公告)号：US08147586B2
公开(公告)日：2012-04-03
申请号：US12338779
申请日：2008-12-18
IPC分类号： B22F9/22
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20090116995A1
公开(公告)日：2009-05-07
申请号：US12338827
申请日：2008-12-18
IPC分类号： C22C28/00
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Densified molybdenum metal powder. Densified molybdenum metal powder has substantially generally spherical particles, surface-area-to-mass ratio of no more than about 0.5 m2/g as determined by BET analysis, and a flowability greater than about 32 s/50 g as determined by a Hall Flowmeter.
摘要翻译： 致密的钼金属粉末。 致密的钼金属粉末具有通过BET分析确定的基本上通常为球形的颗粒，表面 - 质量比不超过约0.5m 2 / g，并且通过霍尔流量计测定的大于约32s / 50g的流动性 。
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公开(公告)号：US20090095131A1
公开(公告)日：2009-04-16
申请号：US12338779
申请日：2008-12-18
IPC分类号： B22F9/04
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20080213122A1
公开(公告)日：2008-09-04
申请号：US11838638
申请日：2007-08-14
CPC分类号： B22F9/22 , B22F1/0011 , B22F1/0014
摘要： Molybdenum metal powder has surface-area-to-mass-ratios in a range of between about 1.0 meters2/gram (m2/g) and about 3.0 m2/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.
摘要翻译： 钼金属粉末的表面积与质量比在约1.0m 2 / g（m 2 SUP / g以下）范围内，约3.0μm 通过BET分析测定，与其中至少30％的颗粒大于+100标准泰勒筛网的颗粒尺寸组合。 一种生产钼金属粉末的方法包括：提供钼酸铵和还原气体; 在第一温度下引起钼酸铵和还原气体之间的放热反应，产生中间反应产物和补充还原气体; 在最终温度下引起中间反应产物和还原气体之间的吸热反应以产生钼金属粉末。
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