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31.发明授权
公开(公告)号：US5328501A
公开(公告)日：1994-07-12
申请号：US689253
申请日：1991-08-19
IPC分类号： C01G3/00 , B22F1/00 , B22F9/04 , B22F9/18 , B22F9/20 , C01G1/00 , C04B20060101 , C04B35/00 , C04B35/45 , C04B35/65 , C22B20060101 , C22B5/00 , C22B5/04 , C22B5/12 , C22C20060101 , C22C1/00 , C22C1/04 , C22C1/05 , C22C1/10 , H01L39/24
CPC分类号： H01L39/2419 , B22F9/04 , B22F9/18 , C04B35/45 , C04B35/65 , C22B5/00 , C22B5/04 , C22B5/12 , C22C1/00 , C22C1/1084
摘要： A process for the production of a metal product which comprises subjecting a mixture of at least one reducible metal compound and at least one reducing agent to mechanical activation to produce a metal or alloy. Preferably, the mechanical activation is performed in an inert or reducing atmosphere. More than one reducing agent may be used. A ceramic material may be produced by including a nonmetal, or a compound which provides the nonmetal, into the starting materials. At least one other metal or a metalloid may be included in the starting materials for incorporation into the final product.
摘要翻译： PCT No.PCT / AU89 / 00550 Sec。 371日期1991年8月19日 102（e）日期1991年8月19日PCT 1989年12月21日PCT PCT。 出版物WO90 / 0701200 日本1982年6月28日。1.一种金属制品的制造方法，其特征在于，使至少一种可还原金属化合物和至少一种还原剂的混合物进行机械活化来制造金属或合金。 优选地，机械活化在惰性或还原气氛中进行。 可以使用多于一种的还原剂。 可以通过将非金属或提供非金属的化合物包括在起始材料中来制备陶瓷材料。 起始材料中可以包含至少一种其它金属或准金属，以便结合到最终产品中。
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公开(公告)号：US4933003A
公开(公告)日：1990-06-12
申请号：US382826
申请日：1989-07-18
摘要： A method for forming a single-phase, homogeneous and high surface area metal alloy by reducing a polyheterometallic complex at a low temperature in hydrogen-containing gas.
摘要翻译： 一种通过在含氢气体中在低温下还原多金属配合物来形成单相，均相和高表面积金属合金的方法。
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公开(公告)号：US4561883A
公开(公告)日：1985-12-31
申请号：US638640
申请日：1984-08-07
申请人： Paul Mullner , Bernhard Enkner , Gerhard Hubweber
发明人： Paul Mullner , Bernhard Enkner , Gerhard Hubweber
CPC分类号： C22B5/12 , C22B34/1286 , C22B4/005
摘要： In a method of producing metals or metal alloys by reducing their halides in a hydrogen plasma, a plasma jet reaction zone is built up from the vaporized metal halides contained in the plasma gas together with hydrogen, and the molten metal formed jets from the plasma jet reaction zone into a mould arranged therebelow. An arrangement for carrying out this method includes a reaction vessel whose upper part has a reaction space for the metal halide to be reduced and hydrogen-containing plasma gas, and a plasma lance arranged centrally in the reaction vessel, the metal formed getting into the lower part of the reaction vessel forming a metal sump therein.
摘要翻译： 在通过在氢等离子体中还原它们的卤化物来制造金属或金属合金的方法中，等离子体射流反应区由氢气等离子体气体中包含的汽化金属卤化物构成，熔融金属从等离子体射流 反应区进入设置在其下的模具中。 用于实施该方法的装置包括反应容器，其上部具有用于还原的金属卤化物的反应空间和含氢的等离子体气体，以及排列在反应容器中心的等离子体喷枪，形成进入下部的金属 反应容器的一部分在其中形成金属槽。
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公开(公告)号：US4471004A
公开(公告)日：1984-09-11
申请号：US489613
申请日：1983-04-28
申请人： Manjin J. Kim
发明人： Manjin J. Kim
CPC分类号： C22B34/34 , C22B34/36 , C22B5/12 , H01L21/321
摘要： The resistivity of a conductor of a refractory metal such as molybdenum is reduced by converting at least a portion of the conductor into a layer of molybdenum nitride in an atmosphere including ammonia at a temperature in the range from about 400.degree. C. to about 850.degree. C. and thereafter heating the conductor in an atmosphere including dry hydrogen in the range from about 950.degree. C. to about 1000.degree. C. for a time to convert the layer of molybdenum nitride into molybdenum and to convert molybdenum oxides in the conductor into molybdenum.
摘要翻译： 通过在约400℃至约850℃的温度范围内将包含氨的气氛中的导体的至少一部分转化为氮化钼层来降低难熔金属如钼的导体的电阻率。 然后在约950℃至约1000℃的干燥氢气氛中加热导体，以将氮化钼层转化为钼，并将导体中的钼氧化物转化为钼 。
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公开(公告)号：US4462845A
公开(公告)日：1984-07-31
申请号：US349508
申请日：1982-02-17
申请人： Erhard Klar , Anil V. Nadkarni , Prasanna K. Samal
发明人： Erhard Klar , Anil V. Nadkarni , Prasanna K. Samal
CPC分类号： C22C32/0021 , B22F1/0088 , C22B15/006 , C22B5/12
摘要： Substantially completely deoxidized, consolidated dispersion-strengthened copper stock of sizable cross section and particulates capable of being thus consolidated into such stock are shown. The stock exhibits ductility substantially greater than that of otherwise corresponding stock which contains about 100-500 ppm of available oxygen. Also shown is a staged powder deoxidation process using hydrogen or like reducing gas followed by the sequestration of remaining available oxygen with a minute proportion of diffusible, normally solid oxygen getter.
摘要翻译： 显示了能够完全脱氧的，相当大的截面的固结分散强化的铜原料和能够被固结成这种坯料的颗粒。 该库存的韧性显着大于含有约100-500ppm可利用氧气的相应原料的延展性。 还示出了使用氢气或类似的还原气体的分段粉末脱氧方法，然后用可分散比例的可扩散的常规固体氧气吸气剂隔离剩余的可用氧气。
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公开(公告)号：US4414022A
公开(公告)日：1983-11-08
申请号：US340300
申请日：1982-01-18
申请人： Gerhard Melcher
发明人： Gerhard Melcher
摘要： Method and apparatus for smelting a sulfidic ore concentrate such as a copper concentrate in which the concentrate is smelted in an oxidizing atmosphere, the melt is after-treated with reducing gases from a plurality of lances which blow the reducing gases onto the melt in the form of concentrated streams of high kinetic energy and form a metal-rich phase and a slag phase. The improvement of the present invention is concerned with oxidizing the concentrate sufficiently to form an enriched metal matte containing more than 75% by weight metal at a throughput of more than 500 metric tons per day, the oxidizing being carried out in a smelting cyclone operating as a steam generator and at a sufficiently high temperature so that the heat transferred to the cyclone walls is at least 500,000 Kcal/sq. m. of cyclone wall/hr.
摘要翻译： 用于熔融硫化矿石浓缩物如铜精矿的方法和设备，其中浓缩物在氧化气氛中熔炼，熔体用来自多个喷枪的还原气体进行后处理，所述多个喷枪将还原气体以形式 的高动能浓缩流，形成富金相和渣相。 本发明的改进涉及将浓缩物充分氧化以形成含有超过75重量％金属的富集金属锍，其生产量为每天超过500公吨，氧化是在冶炼旋风中进行的，其操作为 蒸汽发生器并且处于足够高的温度，使得传递到旋风壁的热量至少为500,000千卡/平方。 m。 的旋风壁/小时。
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37.发明授权
公开(公告)号：US4358311A
公开(公告)日：1982-11-09
申请号：US290077
申请日：1981-08-04
申请人： Horst Weigel , Gerhard Melcher
发明人： Horst Weigel , Gerhard Melcher
摘要： A method and apparatus for smelting an ore concentrate or the like wherein the concentrate is first melted in an oxidizing atmosphere and the smelt is aftertreated with reducing gases to recover the metal values. The improvement consists in positioning a plurality of rows of lances in a smelting reactor in the direction of molten metal flow, the spacing between the rows of lances being substantially greater than the spacing between individual lances in each row. The reducing gas is blown with a high kinetic energy through each lance to cause an area of toroidal bath movement to occur where the gases from each lance impinge against the moving smelt. The spacing between the rows of lances is sufficiently large so that a relatively quiescent zone exists between the areas of toroidal bath movement between each of the rows. The molten metal and a relatively metal-free slag are withdrawn separately from the furnace enclosure.
摘要翻译： 一种用于熔炼精矿等的方法和装置，其中首先在氧化气氛中熔化浓缩物，并且用还原气体处理熔融物以回收金属值。 改进之处在于在冶炼反应器中沿着熔融金属流动的方向定位多排喷枪，喷枪排之间的间距基本上大于每排中各个喷枪之间的间距。 还原气体通过每个喷枪以高动能吹送，以引起环形槽运动的区域，其中来自每个喷枪的气体撞击移动的熔体。 喷枪排之间的间距足够大，使得在每行之间的环形浴运动的区域之间存在相对静止的区域。 熔融金属和相对无金属的炉渣与炉壳分开取出。
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公开(公告)号：US4344791A
公开(公告)日：1982-08-17
申请号：US174267
申请日：1980-07-31
摘要： A process for the manufacture of acicular ferromagnetic iron particles by heating a goethite, provided with a shape-stabilizing surface coating, at 250.degree.-450.degree. C. in an atmosphere containing water vapor at a partial pressure of not less than 30 mbar, to give alpha-iron(III) oxide, and reducing this material with hydrogen at 275.degree.-425.degree. C., and the use of the iron particles thus obtained as magnetic material in the production of magnetic recording media.
摘要翻译： 一种制备针状铁磁性铁颗粒的方法，该方法是在250°-450℃，在含有不少于30毫巴分压的水蒸汽的气氛中加热具有形状稳定表面涂层的针铁矿，至 得到氧化铁（III），并在275°-425℃下用氢气还原这种材料，并且使用由此获得的铁颗粒作为磁性材料制造磁记录介质。
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公开(公告)号：US4298190A
公开(公告)日：1981-11-03
申请号：US9684
申请日：1979-02-05
申请人： Patrick W. MacKay
发明人： Patrick W. MacKay
CPC分类号： C22B5/12 , C21B13/04 , Y02P10/136 , Y02P10/143
摘要： An improvement in a method for the batchwise gaseous reduction of iron ore to sponge iron in a multiple unit reactor system including a cooling reactor and a series of reduction reactors. Reduction is effected with a gas composed largely of carbon monoxide and hydrogen generated by reforming a mixture of steam and natural gas or other gaseous hydrocarbons at an elevated temperature. The reducing gas pressure drop through the system is decreased by using an out-of-line cooling reactor and cooling gas loop, thereby making it feasible to use three or more reduction reactors in series and thus enhance the efficiency of utilization of the reducing gas. Also the use of an out-of-line cooling reactor permits independent control of both the gas flow rate and gas composition in the cooling loop.
摘要翻译： 在包括冷却反应器和一系列还原反应器的多单元反应器系统中对铁矿石到海绵铁的间歇气态还原方法的改进。 通过在升高的温度下重整蒸汽和天然气或其它气态烃的混合物而产生的主要由一氧化碳和氢气组成的气体进行还原。 通过使用离线式冷却反应器和冷却气体回路，通过系统的还原气体压降降低，从而使得可以串联使用三个或更多个还原反应器，从而提高还原气体的利用效率。 此外，使用离线冷却反应器可以独立控制冷却回路中的气体流速和气体成分。
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公开(公告)号：US4256484A
公开(公告)日：1981-03-17
申请号：US61797
申请日：1979-07-30
申请人： Richard H. Rodrian
发明人： Richard H. Rodrian
摘要： In the process for preparing a magnetically stable, powder comprising the steps of reducing an iron oxide or iron oxide hydrate with a gaseous reduction agent and stabilizing the metallic powder thus produced, the improvement which comprises enhancing its reduction by coating said iron oxide or iron oxide hydrate with an antimony compound at a level of up to about 7 weight percent antimony based on the weight of the iron oxide prior to said reduction.
摘要翻译： 在制备磁稳定粉末的方法中，包括用气态还原剂还原氧化铁或氧化铁水合物并稳定所产生的金属粉末的步骤，其改进包括通过涂覆所述氧化铁或氧化铁来增强其还原 在所述还原之前基于氧化铁的重量，以高达约7重量％的锑水平与锑化合物水合。
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