-
1.发明授权Recycling of rare earth metals from rare earth-transition metal alloy scrap by liquid metal extraction 失效通过液态金属萃取从稀土 - 过渡金属合金废料中回收稀土金属
公开(公告)号：US5437709A
公开(公告)日：1995-08-01
申请号：US280440
申请日：1994-07-26
CPC分类号： C22B59/00 , Y02P10/214
摘要： Method of treating rare earth metal-bearing scrap, waste or other material (e.g. Nd--Fe--B or Dy--Tb--Fe scrap) to recover the rare earth metal comprising melting the rare earth metal-bearing material, melting a Group IIA metal extractant, such as Mg, Ca, or Ba, in which the rare earth is soluble in the molten state, and contacting the melted material and melted extractant at a temperature and for a time effective to extract the rare earth from the melted material into the melted extractant. The rare earth metal is separated from the extractant metal by vacuum sublimation or distillation.
摘要翻译： 处理稀土金属废料，废料或其他材料（如Nd-Fe-B或Dy-Tb-Fe废料）回收稀土金属的方法，包括熔化含稀土金属的材料，熔化IIA族金属 萃取剂，例如Mg，Ca或Ba，其中稀土可溶于熔融状态，并使熔融材料和熔融的萃取剂在有效地从熔融材料中提取稀土的温度和时间内接触到 熔化的萃取剂。 通过真空升华或蒸馏将稀土金属与萃取剂金属分离。
-
公开(公告)号：US5087291A
公开(公告)日：1992-02-11
申请号：US591046
申请日：1990-10-01
申请人： Frederick A. Schmidt , David T. Peterson , John T. Wheelock , Lawrence L. Jones , Lanny P. Lincoln
发明人： Frederick A. Schmidt , David T. Peterson , John T. Wheelock , Lawrence L. Jones , Lanny P. Lincoln
IPC分类号： C22B59/00
CPC分类号： C22B59/00 , Y02P10/214
摘要： Rare earth-transition metal (e.g. iron) scrap (e.g. Nd-Fe-B scrap) is melted to reduce the levels of tramp oxygen and nitrogen impurities therein. The tramp impurities are reduced in the melt by virtue of the reaction of the tramp impurities and the rare earth to form dross on the melt. The purified melt is separated from the dross for reuse. The oxygen and nitrogen of the melt are reduced to levels acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets.
摘要翻译： 稀土过渡金属（例如铁）废料（例如Nd-Fe-B废料）被熔化以降低其中的氧气和氮杂质的水平。 借助于杂质杂质和稀土的反应，熔融物中的杂质杂质在熔体中形成浮渣。 将纯化的熔体与浮渣分离以供再利用。 将熔体中的氧气和氮气降低到可用于在最终用途制品（例如永磁体）的制造中重新使用经处理的合金的水平。
-
3.发明授权Method of preparing copper-dendritic composite alloys for mechanical reduction 失效制备用于机械还原的铜 - 树枝状复合材料合金的方法
公开(公告)号：US4770718A
公开(公告)日：1988-09-13
申请号：US112678
申请日：1987-10-23
CPC分类号： B22F9/082 , B22F9/14 , C22C1/0425 , C23C4/123 , B22F2998/00 , B22F2998/10 , Y10T29/49982
摘要： Copper-dendritic composite alloys are prepared for mechanical reduction to increase tensile strength by dispersing molten droplets of the composite alloy into an inert gas; solidifying the droplets in the form of minute spheres or platelets; and compacting a mass of the spheres or platelets into an integrated body. The spheres preferably have diameters of from 50 to 2000 .mu.m, and the platelets thicknesses of 100 to 2000 .mu.m. The resulting spheres or platelets will contain ultra-fine dendrites which produce higher strengths on mechanical reduction of the bodies formed therefrom, or comparable strengths at lower reduction values. The method is applicable to alloys of copper with vanadium, niobium, tantalum, chromium, molybdenum, tungsten, iron and cobalt.
摘要翻译： 制备铜树枝状复合合金用于机械还原，通过将复合合金的熔滴分散在惰性气体中来提高拉伸强度; 以微小球体或血小板的形式固化液滴; 并将大量的球体或血小板压实成一个整体。 球体的直径优选为50〜2000μm，血小板厚度为100〜2000μm。 所得到的球体或血小板将含有超细枝晶，其在由其形成的物体的机械还原上产生更高的强度，或者在较低的还原值下具有相当的强度。 该方法适用于铜，钒，铌，钽，铬，钼，钨，铁和钴的合金。
-
4.发明授权
公开(公告)号：US4770704A
公开(公告)日：1988-09-13
申请号：US25572
申请日：1987-03-13
CPC分类号： C30B11/001 , C30B11/00 , C30B29/52 , H01L41/47
摘要： The invention comprises a continuous casting and crystallization method for manufacturing grain-oriented magnetostrictive bodies. A magnetostrictive alloy is melted in a crucible having a bottom outlet. The melt is discharged through the bottom of the crucible and deposited in an elongated mold. Heat is removed from the deposited melt through the lower end portion of the mold to progressively solidify the melt. The solid-liquid interface of the melt moves directionally upwardly from the bottom to the top of the mold, to produce the axial grain orientation.
-
公开(公告)号：US4481030A
公开(公告)日：1984-11-06
申请号：US500102
申请日：1983-06-01
CPC分类号： C22C9/00
摘要： A tantalum-copper alloy can be made by preparing a consumable electrode consisting of an elongated copper billet containing at least two spaced apart tantalum rods extending longitudinally the length of the billet. The electrode is placed in a dc arc furnace and melted under conditions which co-melt the copper and tantalum to form the alloy.
摘要翻译： 钽铜合金可以通过制备一个消耗性电极制成，该消耗电极由细长的铜坯组成，该细长的铜坯包含沿坯料的长度纵向延伸的至少两个间隔开的钽棒。 将电极放置在直流电弧炉中并在共熔融铜和钽以形成合金的条件下熔化。
-
6.发明授权Method for producing La/Ce/MM/Y base alloys, resulting alloys and battery electrodes 有权生产La / Ce / MM / Y基合金，合金和电池电极的方法公开(公告)号：US09525176B2
公开(公告)日：2016-12-20
申请号：US13694846
申请日：2013-01-10
CPC分类号： C22C1/06 , C22C1/00 , C22C28/00 , C22C30/00 , H01M4/242 , H01M4/383 , H01M4/385 , H01M4/58 , H01M4/662 , H01M10/30 , H01M10/345 , Y02E60/124 , Y02P70/54
摘要： A carbothermic reduction method is provided for reducing a La-, Ce-, MM-, and/or Y-containing oxide in the presence of carbon and a source of a reactant element comprising Si, Ge, Sn, Pb, As, Sb, Bi, and/or P to form an intermediate alloy material including a majority of La, Ce, MM, and/or Y and a minor amount of the reactant element. The intermediate material is useful as a master alloy for in making negative electrode materials for a metal hydride battery, as hydrogen storage alloys, as master alloy additive for addition to a melt of commercial Mg and Al alloys, steels, cast irons, and superalloys; or in reducing Sm2O3 to Sm metal for use in Sm—Co permanent magnets.
摘要翻译： 提供了一种碳热还原法，用于在碳的存在下还原含有La，Ce，MM和/或Y的氧化物，以及包含Si，Ge，Sn，Pb，As，Sb， Bi和/或P形成包含大部分La，Ce，MM和/或Y的中间合金材料和少量的反应物元素。 中间材料可用作制备用于金属氢化物电池的负极材料的母合金，作为储氢合金作为用于添加到商业Mg和Al合金，钢，铸铁和超级合金的熔体的母合金添加剂; 或将Sm2O3还原成Sm金属，用于Sm-Co永久磁铁。
-
公开(公告)号：US20120315182A1
公开(公告)日：2012-12-13
申请号：US13506434
申请日：2012-04-18
申请人： Karl A. Gschneider, JR. , Frederick A. Schmidt , Alexandra O. Tsokol , Vitalij K. Pecharsky , Lawrence L. Jones , Paul B. Wheelock
发明人： Karl A. Gschneider, JR. , Frederick A. Schmidt , Alexandra O. Tsokol , Vitalij K. Pecharsky , Lawrence L. Jones , Paul B. Wheelock
CPC分类号： C22C28/00 , B22F9/20 , C22C1/0491 , C22C27/04 , H01F1/015
摘要： A method for preparing R5X4 alloy materials where R is a rare earth element selected from one or more of La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, Sc, and Y and X represents a non-rare earth alloying element such as silicon, germanium, tin, lead, gallium, indium and mixtures thereof. The method involves carbothermically reducing amounts of a rare earth element-containing oxide, an alloying element-containing oxide and/or alloying element in elemental or alloy form, and carbon at elevated temperature to form an R5X4 alloy material, which is melted, solidified, and optionally heat treated. Such a method provides an economical and efficient technique of configuring magnetic refrigerant, magnetostrictive and magnetoresistive alloys and products.
摘要翻译： 一种制备R5X4合金材料的方法，其中R是选自La，Ce，Sm，Eu，Gd，Tb，Dy，Ho，Er，Tm，Lu，Sc和Y中的一种或多种的稀土元素，X和X表示 非稀土合金元素如硅，锗，锡，铅，镓，铟及其混合物。 该方法包括在元素或合金形式的碳纳米管中减少含稀土元素的氧化物，含合金元素的氧化物和/或合金元素的量，并在升高的温度下形成碳，以形成熔融固化的R 5 X 4合金材料， 并任选地进行热处理。 这种方法提供了一种经济有效的配置磁性制冷剂，磁致伸缩和磁阻合金和产品的技术。
-
公开(公告)号：US4600448A
公开(公告)日：1986-07-15
申请号：US636430
申请日：1984-07-31
IPC分类号： C22C9/00
CPC分类号： C22C9/00
摘要： A tantalum-copper alloy can be made by preparing a consumable electrode consisting of an elongated copper billet containing at least two spaced apart tantalum rods extending longitudinally the length of the billet. The electrode is placed in a dc arc furnace and melted under conditions which co-melt the copper and tantalum to form the alloy.
摘要翻译： 钽铜合金可以通过制备一个消耗性电极制成，该消耗电极由细长的铜坯组成，该细长的铜坯包含沿坯料的长度纵向延伸的至少两个间隔开的钽棒。 将电极放置在直流电弧炉中并在共熔融铜和钽以形成合金的条件下熔化。
-
9.发明申请公开(公告)号：US20120282130A1
公开(公告)日：2012-11-08
申请号：US13506427
申请日：2012-04-18
CPC分类号： C22C28/00 , B22F9/20 , C22C2202/02 , H01F1/0577 , H01F1/0578 , H01F1/058
摘要： A carbothermic reduction method is provided for reducing a rare earth element-containing oxide including at least one of neodymium (Nd) and praseodymium (Pr) and possibly other rare earth elements (La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, and Y) as alloying agents in the presence of carbon and a source of a reactant element including one or more of silicon, germanium, tin, lead, arsenic, antimony and bismuth to form a rare earth element-containing intermediate alloy as a master alloy for making permanent magnet material. The process is a more efficient, lower cost and environmentally friendly technology than current methods of manufacturing rare earth metals. The intermediate material is useful as a master alloy for making a permanent magnet material comprising at least one of neodymium and praseodymium, and possibly other rare earth metals as alloying additives.
摘要翻译： 提供碳热还原法，用于还原含有钕（Nd）和镨（Pr）和可能的其它稀土元素（La，Ce，Sm，Eu，Gd，Tb，Dy等）中的至少一种的含稀土元素的氧化物， Ho，Er，Tm，Yb，Lu，Sc和Y）作为合金剂，在碳和来自包含一种或多种硅，锗，锡，铅，砷，锑和铋的反应物元素的存在下形成 含稀土元素的中间合金作为制造永磁材料的母合金。 该工艺比现有的稀土金属制造方法更有效率，更低成本和环保的技术。 中间材料可用作制造包含钕和镨中的至少一种的永磁体材料的母合金，以及可能的其它稀土金属作为合金添加剂。
-
公开(公告)号：US4832738A
公开(公告)日：1989-05-23
申请号：US093920
申请日：1987-09-08
摘要： Molybdenum-copper and tungsten-copper alloys are prepared by a consumable electrode method in which the electrode consists of a copper matrix with embedded strips of refractory molybdenum or tungsten. The electrode is progressively melted at its lower end with a superatmospheric inert gas pressure maintained around the liquifying electrode. The inert gas pressure is sufficiently above the vapor pressure of copper at the liquidus temperature of the alloy being formed to suppress boiling of liquid copper.
摘要翻译： 钼铜和钨铜合金通过消耗电极法制备，其中电极由具有嵌入的难熔钼或钨的条带的铜基体组成。 电极在其下端逐渐熔化，其中保持在液化电极周围的超大气惰性气体压力。 在形成的合金的液相线温度下，惰性气体压力足够高于铜的蒸气压，以抑制液体铜的沸腾。
-
-
-
-
-
-
-
-
-
搜索结果
18 条记录 (耗时 0.014 秒)