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    Recovering metal values from geothermal brine
    4.
    发明授权
    Recovering metal values from geothermal brine 失效
    从地热盐水回收金属值

    公开(公告)号：US4602820A

    公开(公告)日：1986-07-29

    申请号：US610258

    申请日：1984-05-14

    申请人： Robert A. Hard

    发明人： Robert A. Hard

    IPC分类号： C22B3/00 ,  C22B3/46 ,  C22B15/00 ,  E21B43/28 ,  E21B43/34 ,  C22B11/04 ,  C22B13/04 ,  C22B15/12 ,  C22B25/04

    CPC分类号： E21B43/34 ,  C22B11/04 ,  C22B13/04 ,  C22B15/0091 ,  C22B25/04 ,  C22B3/46 ,  E21B43/28 ,  Y02P10/234 ,  Y02P10/236

    摘要： A process is provided for recovering valuable metals from geothermal brine comprising introducing donor metallic particles into a geothermal zone which is dominated with hot-pressurized geothermal brine which contains a metal value selected from the group consisting of gold value, silver value, copper value, lead value, tin value and mixtures thereof. The donor metallic particle contains a donor metal selected from the group consisting of iron, zinc, aluminum and mixtures thereof. The process further comprises forming a deposit on the donor metallic particles by replacing at least a part of the donor particle with the metal values, producing a stream of the hot-pressurized geothermal brine containing the donor metallic particles which, in turn, contain the deposit of metal values, and separating the donor metallic particles from the thusly produced stream of hot-pressurized geothermal brine.

    摘要翻译： 提供了一种从地热盐水中回收有价金属的方法，包括将供体金属颗粒引入地热区，该地热区主要由热压地热盐水组成，其中含有选自金值，银值，铜值，铅 值，锡值及其混合物。 供体金属颗粒含有选自铁，锌，铝及其混合物的供体金属。 该方法还包括通过用供给金属颗粒代替至少一部分供体颗粒，在供体金属颗粒上形成沉积物，产生含有供体金属颗粒的热压地热盐水，其又含有沉积物 的金属值，并将供体金属颗粒与如此产生的热压地热卤水流分离。

    Production of metallic powders
    5.
    发明授权
    Production of metallic powders 失效
    生产金属粉末

    公开(公告)号：US4191557A

    公开(公告)日：1980-03-04

    申请号：US945324

    申请日：1978-09-25

    申请人： Thomas J. Kondis

    发明人： Thomas J. Kondis

    IPC分类号： B22F9/24 ,  C22B13/04 ,  C22B23/04 ,  C22B25/04 ,  C22B34/32

    CPC分类号： B22F9/24

    摘要： The process of producing a metallic powder from a metal compound such as nickel chloride comprising the steps of: first forming a slurry of (1) a compatible, non-aqueous liquid in which the metal compound is completely or partially soluble, and (2) a reactive metal which occupies a position in the electromotive series above the position of the metal constituent in the metal compound, i.e. has a single electrode potential more negative than that of the metal constituent in the metal compound. The metal compound is then added to the solvent in the slurry, e.g. forming a slurry of pyrophoric aluminum powder in methyl ethyl ketone (MEK) and then adding nickel chloride to the MEK. The reactive metal can be in a pyrophoric state prior to introduction of the metal compound, or it can be made to be pyrophoric in the presence of the metal compound, so that it reduces the metal constituent of the dissolved metal compound as metal compound solution contacts the pyrophoric metal surface. For example, aluminum powder can be made sufficiently reactive by milling to produce pyrophoric surfaces. Alternatively, if the metal compound is a liquid, e.g. stannic chloride, a part or all of the carrier liquid needed to slurry the potentially pyrophoric reactive metal may be eliminated.

    摘要翻译： 从金属化合物如氯化镍制备金属粉末的方法包括以下步骤：首先形成（1）相容的非水性液体的浆料，其中金属化合物完全或部分可溶，和（2） 在金属化合物中位于金属成分的位置之上的电动势系中的位置的活性金属，即具有比金属化合物中的金属成分的单电极电位更负的单电极电位。 然后将金属化合物加入到浆料中的溶剂中，例如 在甲基乙基酮（MEK）中形成发泡铝粉末的浆料，然后向MEK中加入氯化镍。 反应性金属可以在引入金属化合物之前处于自燃状态，或者可以在金属化合物的存在下发生自燃，从而使金属化合物溶液接触的金属成分降低 发火金属表面。 例如，铝粉可以通过研磨制成足够的反应性以产生发火表面。 或者，如果金属化合物是液体，例如 可以消除氯化锡，可能的自燃反应性金属淤浆所需的部分或全部载体液体。

    Method for removing metals from dilute aqueous solutions
    6.
    发明授权
    Method for removing metals from dilute aqueous solutions 失效
    从稀水溶液中除去金属的方法

    公开(公告)号：US3985554A

    公开(公告)日：1976-10-12

    申请号：US562997

    申请日：1975-03-27

    申请人： Frederic C. McCoy

    发明人： Frederic C. McCoy

    IPC分类号： C22B3/46 ,  C22B11/04 ,  C22B13/04 ,  C22B15/12 ,  C22B25/04

    CPC分类号： C22B3/46 ,  Y02P10/234

    摘要： Disclosed is a method for recovering from dilute aqueous solutions metals below iron in the electromotive series by percolating the solutions through iron particles having a size such as will pass completely through a 100 mesh sieve, or by intimately mixing the solutions and the iron particles, followed by filtration or centrifuging. The iron particles are "swarf" produced by the grinding of ferrous metals.

    摘要翻译： 公开了一种通过将溶液渗透通过完全通过100目筛的尺寸的铁颗粒或通过将溶液和铁颗粒紧密混合的方式渗透溶液而从电解液系列中的低于铁的稀水溶液中回收的方法，随后 通过过滤或离心。 铁颗粒是通过研磨黑色金属产生的“切屑”。