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    Production of pure molybdenum oxide from low grade molybdeniteconcentrates
    1.
    发明授权
    Production of pure molybdenum oxide from low grade molybdeniteconcentrates 失效
    从低等级钼酸钙生产纯氧化钼

    公开(公告)号：US06730279B2

    公开(公告)日：2004-05-04

    申请号：US09852207

    申请日：2001-05-09

    申请人： Robert W. Balliett ,  Wolfgang Kummer ,  John E. Litz ,  Lawrence F. McHugh ,  Harry H. K. Nauta ,  Paul B. Queneau ,  Rong-Chien Wu

    发明人： Robert W. Balliett ,  Wolfgang Kummer ,  John E. Litz ,  Lawrence F. McHugh ,  Harry H. K. Nauta ,  Paul B. Queneau ,  Rong-Chien Wu

    IPC分类号： C01G3900

    CPC分类号： C01G39/003 ,  C01G39/02

    摘要： High purity ammonium dimolybdate or molybdenum oxide is produced by the pressure oxidation of low grade molybdenite concentrates or molybdenum intermediates. The process entails nearly complete oxidation of the sulfide minerals while optimizing the process chemistry and autoclave conditions to solubilize as little of the molybdenum values as possible. The autoclave discharge 12 is then subjected to a leaching step, either an alkaline leach 50, 400 or ammonium leach 250 process, before or after a liquid/solid separation step 20, 220, 410. The solution is then subjected to (a) filtration 60, 410, solvent extraction 70, 440, crystallization 90,450, and calcination 120, 480 or (b) filtration 260, 280, crystallization 290, and calcination 320 to produce a product suitable for chemical-grade molybdenum oxide 125, 325, 485.

    摘要翻译： 通过低品位辉钼矿浓缩物或钼中间体的压力氧化产生高纯度的二钼酸铵或氧化钼。 该过程需要几乎完全硫化矿物氧化，同时优化工艺化学和高压釜条件以溶解尽可能少的钼值。 然后在液体/固体分离步骤20,220,410之前或之后对高压釜排出口12进行浸出步骤，碱浸液50,400或铵浸出250处理。然后将溶液进行（a）过滤 60,410，溶剂萃取70,440，结晶90,450和煅烧120,480或（b）过滤260,280，结晶290和煅烧320以产生适合于化学级氧化钼125,325,485的产物。

    Production of tantalum-tungsten alloys production by powder metallurgy
    5.
    发明授权
    Production of tantalum-tungsten alloys production by powder metallurgy 失效
    通过粉末冶金生产钽钨合金

    公开(公告)号：US5918104A

    公开(公告)日：1999-06-29

    申请号：US997907

    申请日：1997-12-24

    申请人： Robert W. Balliett ,  Trung Luong

    发明人： Robert W. Balliett ,  Trung Luong

    IPC分类号： C22C1/04 ,  C22C27/02

    CPC分类号： C22C27/02 ,  C22C1/045 ,  B22F2998/00 ,  B22F2998/10

    摘要： Powder metallurgy production of Ta10W alloy affording properties comparable to melt derived Ta10W, but at higher yields and lower costs, is enabled by blending component powders of minus 325 mesh and sintering at 2,400.degree. C. in three sinter steps and utilizing a slow ramp up in the first sinter step and cold isostatic pressing prior to the first sinter step and isostatic press densification in conjunction with at least the first sinter step.

    摘要翻译： Ta10W合金的粉末冶金生产提供了与熔体衍生的Ta10W相当的性能，但是以更高的产率和更低的成本，通过混合325目的组分粉末并在2400℃下烧结在三个烧结步骤中并利用缓慢的上升 在第一烧结步骤之前的第一烧结步骤和冷等静压，以及至少第一烧结步骤的等静压机致密化。

    T222 production by powder metallurgy
    6.
    发明授权
    T222 production by powder metallurgy 失效
    T222粉末冶金生产

    公开(公告)号：US5940675A

    公开(公告)日：1999-08-17

    申请号：US998101

    申请日：1997-12-24

    申请人： Robert W. Balliett ,  Trung Luong

    发明人： Robert W. Balliett ,  Trung Luong

    IPC分类号： C22C1/04 ,  B22F3/00

    CPC分类号： C22C1/045 ,  B22F2998/00 ,  B22F2998/10

    摘要： Powder metallurgy production of T222 alloy affording properties comparable to melt derived T222, but at higher yields and lower costs, is enabled by blending component powders of minus 325 mesh and sintering at 2,400.degree. C. in three sinter steps and utilizing a slow ramp up in the first sinter step and cold isostatic pressing prior to the first sinter step and isostatic press densification in conjunction with at least the first sinter step.

    摘要翻译： T222合金的粉末冶金生产提供了与熔体衍生的T222相当的性能，但是以更高的产率和更低的成本，通过掺杂325目的组分粉末和在2400℃下烧结在三个烧结步骤中并利用缓慢的上升 在第一烧结步骤之前的第一烧结步骤和冷等静压，以及至少第一烧结步骤的等静压机致密化。

    Wire-drawing lubricant and method of use
    7.
    发明授权
    Wire-drawing lubricant and method of use 失效
    拔丝润滑剂及使用方法

    公开(公告)号：US5743120A

    公开(公告)日：1998-04-28

    申请号：US439525

    申请日：1995-05-12

    申请人： Robert W. Balliett

    发明人： Robert W. Balliett

    IPC分类号： B21C9/02 ,  C10M105/52 ,  C10M105/60 ,  C10M105/70 ,  B21B45/02

    CPC分类号： B21C1/003 ,  B21C9/02 ,  C10M105/50 ,  C10M105/52 ,  C10M105/58 ,  C10M2213/0623 ,  C10M2215/023 ,  C10N2220/022 ,  C10N2230/06 ,  C10N2240/402

    摘要： A process for drawing wire employing a lubricant composed of perfluorocarbon compounds having the general formula C.sub.n F.sub.2n+2. Such fully fluorinated carbon compounds exhibit a very high degree of thermal and chemical stability, due to the strength of the carbon-fluorine bond. Further, because the compounds are fully fluorinated, and therefore do not contain chlorine and bromine, they have zero ozone depletion potential (ODP). Further, because the PFCs are photochemically non-reactive in the atmosphere, they are not precursors to photochemical smog and are exempt from the federal volatile organic compound (VOC) definition.

    摘要翻译： 使用由具有通式CnF2n + 2的全氟化碳化合物构成的润滑剂的线材的拉丝方法。 由于碳 - 氟键的强度，这种完全氟化的碳化合物表现出非常高的热和化学稳定性。 此外，由于化合物是完全氟化的，因此不含氯和溴，它们具有零臭氧消耗潜能（ODP）。 此外，因为PFCs在大气中是光电化学反应性的，它们不是光化学烟雾的前体，而是免于联邦挥发性有机化合物（VOC）定义。

    Method of fixing hazardous substances in waste foundry sand
    9.
    发明授权
    Method of fixing hazardous substances in waste foundry sand 失效
    在废砂铸造砂中固定有害物质的方法

    公开(公告)号：US4408985A

    公开(公告)日：1983-10-11

    申请号：US301459

    申请日：1981-09-14

    申请人： Mark A. Anderson ,  Robert W. Balliett ,  Paul E. Link ,  Donald P. Satchell

    发明人： Mark A. Anderson ,  Robert W. Balliett ,  Paul E. Link ,  Donald P. Satchell

    IPC分类号： B22C5/08 ,  B22C5/18 ,  F27B14/00 ,  B28B7/36 ,  B28C5/06

    CPC分类号： B22C5/18 ,  B22C5/08

    摘要： A method is disclosed for fixing certain dangerous substances into recyclable waste foundry sand so that they are less likely to leach out into the environment. The method uses a roasting process which causes the dangerous substances to form insoluble compounds with the sand. One example is shown where hazardous waste foundry sand which contains acetic acid soluble lead contamination is treated by this method. In this example the lead is believed to react with the sand during the roasting process forming compounds such as lead silicate which are insoluble to acetic acid. The amount of lead which may be leached out into the environment is reduced to a safe level according to the currently accepted test methods promulgated by the U.S. Environmental Protection Agency. The method may be applied to the conversion of waste foundry sand into reusable sand or landfill which are less likely to leach dangerous substances into the environment.

    摘要翻译： 公开了一种将某些危险物质固定在可回收废弃物铸造砂中的方法，使得它们不太可能浸出到环境中。 该方法采用焙烧过程，导致危险物质与沙子形成不溶性化合物。 一个例子显示了通过该方法处理含有乙酸可溶性铅污染物的危险废物铸造砂。 在这个例子中，铅被认为在焙烧过程中与砂形成反应，形成不溶于乙酸的化合物如硅酸铅。 根据目前公认的美国环境保护局颁布的测试方法，可能排入环境的铅含量降至安全水平。 该方法可以应用于将废弃砂轮转化为可再利用的沙子或垃圾填埋场，这些垃圾填埋场不太可能将危险物质浸入环境中。