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47 条记录 (耗时 0.014 秒)

    Chlorination of copper, lead, zinc, iron, silver and gold
    12.
    发明授权
    Chlorination of copper, lead, zinc, iron, silver and gold 失效
    铜，铅，锌，铁，银和金的氯化

    公开(公告)号：US4576812A

    公开(公告)日：1986-03-18

    申请号：US619874

    申请日：1984-06-12

    申请人： Hardwin E. A. von Hahn

    发明人： Hardwin E. A. von Hahn

    IPC分类号： C01B9/02 ,  C01B17/06 ,  C01G3/04 ,  C01G5/02 ,  C01G7/00 ,  C01G9/04 ,  C01G21/16 ,  C01G49/10 ,  C01G5/00

    CPC分类号： C01G7/00 ,  C01B17/06 ,  C01B9/02 ,  C01G21/16 ,  C01G3/04 ,  C01G49/10 ,  C01G5/02 ,  C01G9/04

    摘要： This invention relates to a process for making the chloride of a metal from the sulfide of said metal in the absence of air and for a metal selected from copper, iron, lead, zinc, silver and gold. The process consists of three broad steps. First, forming an intimate mixture of finely divided sulfides of the metals with finely divided chlorides, the latter being in an anhydrous state. Second, heating the mixture to a temperature at which there is a rapid reaction converting the metal sulfides to chlorides and elemental sulfur in the state of a solid aggregate mixture. Third, recovering the formed metal chlorides from the aggregate mixture by conventional means.

    摘要翻译： 本发明涉及一种在不存在空气和从铜，铁，铅，锌，银和金中选择的金属中从所述金属硫化物制备金属氯化物的方法。 该过程包括三个广泛的步骤。 首先，形成细碎的金属硫化物与细碎的氯化物的紧密混合物，后者处于无水状态。 第二，将混合物加热到在固体骨料混合物的状态下将金属硫化物转化为氯化物和元素硫的快速反应的温度。 第三，通过常规方法从骨料混合物中回收形成的金属氯化物。

    Electrodrift purification of materials for room temperature radiation detectors
    20.
    发明授权
    Electrodrift purification of materials for room temperature radiation detectors 失效
    室内辐射探测器材料的电致发光净化

    公开(公告)号：US5641392A

    公开(公告)日：1997-06-24

    申请号：US504001

    申请日：1995-07-19

    申请人： Ralph B. James ,  John M. Van Scyoc, III ,  Tuviah E. Schlesinger

    发明人： Ralph B. James ,  John M. Van Scyoc, III ,  Tuviah E. Schlesinger

    IPC分类号： C01G13/04 ,  C01G15/00 ,  C01G21/16 ,  C25F1/00

    CPC分类号： C01G15/00 ,  C01G13/04 ,  C01G21/16

    摘要： A method of purifying nonmetallic, crystalline semiconducting materials useful for room temperature radiation detecting devices by applying an electric field across the material. The present invention discloses a simple technology for producing purified ionic semiconducting materials, in particular PbI.sub.2 and preferably HgI.sub.2, which produces high yields of purified product, requires minimal handling of the material thereby reducing the possibility of introducing or reintroducing impurities into the material, is easy to control, is highly selective for impurities, retains the stoichiometry of the material and employs neither high temperatures nor hazardous materials such as solvents or liquid metals. An electric field is applied to a bulk sample of the material causing impurities present in the sample to drift in a preferred direction. After all of the impurities have been transported to the ends of the sample the current flowing through the sample, a measure of the rate of transport of mobile impurities, falls to a low, steady state value, at which time the end sections of the sample where the impurities have concentrated are removed leaving a bulk sample of higher purity material. Because the method disclosed here only acts on the electrically active impurities, the stoichiometry of the host material remains substantially unaffected.

    摘要翻译： 一种通过在整个材料上施加电场来净化用于室温辐射检测装置的非金属，晶体半导体材料的方法。 本发明公开了一种用于生产纯化的离子半导体材料的简单技术，特别是产生高产率的纯化产物的PbI 2，优选HgI 2，需要对材料进行最少的处理，从而减少将杂质引入或再引入材料的可能性是容易的 为了控制，对杂质是高选择性的，保留了材料的化学计量，既不使用高温也不使用有害物质，如溶剂或液态金属。 将电场施加到材料的大量样品，导致样品中存在的杂质沿优选的方向漂移。 在将所有杂质运送到样品的末端之后，流过样品的电流（移动杂质的运输速率的量度）降至低的稳态值，此时样品的末端部分 其中杂质浓缩的物质被除去，留下较高纯度材料的大量样品。 因为这里公开的方法仅作用于电活性杂质，所以主体材料的化学计量基本上不受影响。