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    REDUCED ACID LEACHING AND RESIN IN LEACH EXTRACTION FROM ACID CONSUMING COPPER ORES
    4.
    发明申请
    REDUCED ACID LEACHING AND RESIN IN LEACH EXTRACTION FROM ACID CONSUMING COPPER ORES 审中-公开

    公开(公告)号：US20170204494A1

    公开(公告)日：2017-07-20

    申请号：US15327828

    申请日：2015-07-21

    申请人： FENIX HYDROMET AUSTRALASIA PTY LTD.

    发明人： David Richard SHAW ,  Nickola Churnside MURRAY ,  David Bruce DREISINGER

    IPC分类号： C22B3/42 ,  C22B15/00

    CPC分类号： C22B3/42 ,  C22B15/0067 ,  Y02P10/234 ,  Y02P10/236

    摘要： The invention provides processes that significantly reduce acid consumption while maintaining efficient leach recovery of copper from oxide and acid consuming ores. The invention provides a hydrometallurgical process that reduces acid required for leaching in the presence of a solid ion exchange media. The presence of the ion exchanger leads to copper extraction from solution into the ion exchange phase, the removal of the copper from solution shifts the dissolved copper equilibrium, enabling additional copper dissolution at weak acidities where normally the leaching equilibrium would be hindered. In select embodiments, the process is not reliant on an external neutralising agent to control pH but rather on the acid consuming characteristic of the ore being processed and a limit to the amount of acid added. At the pH at which the leach is controlled, iron (if present) is predominantly present as the ferrous ion, which has a lower affinity for the resin than copper.

    METHOD OF ORE PROCESSING
    6.
    发明申请
    METHOD OF ORE PROCESSING 审中-公开
    ORE加工方法

    公开(公告)号：US20160355906A1

    公开(公告)日：2016-12-08

    申请号：US15241200

    申请日：2016-08-19

    申请人： The University of Queensland

    发明人： James VAUGHAN ,  William HAWKER

    IPC分类号： C22B3/00 ,  C25C1/08

    CPC分类号： C22B23/0476 ,  C22B3/045 ,  C22B15/0067 ,  C22B19/22 ,  C22B23/0415 ,  C22B23/043 ,  C22B23/0461 ,  C25C1/08 ,  Y02P10/234 ,  Y02P10/236

    摘要： A method of selectively leaching a metal such as nickel from an ore or ore processing intermediate comprising the metal and cobalt. The ore or ore processing intermediate is contacted with an acidic leach solution comprising an amount of an oxidising agent sufficient to oxidise a major portion of the cobalt to thereby cause it to be stabilised in the solid phase while a major portion of the metal is dissolved for subsequent recovery.

    摘要翻译： 从包含金属和钴的矿石或矿石加工中间体中选择性浸出诸如镍的金属的方法。 矿石或矿石加工中间体与酸性浸出溶液接触，酸性浸出溶液含有一定量的足以氧化大部分钴的氧化剂，从而使其稳定在固相中，同时大部分金属被溶解， 随后恢复。

    Process for the acid digestion of metal-containing compounds
    7.
    发明授权
    Process for the acid digestion of metal-containing compounds 有权
    酸性消化含金属化合物的方法

    公开(公告)号：US09487845B2

    公开(公告)日：2016-11-08

    申请号：US13106281

    申请日：2011-05-12

    申请人： Thomas Heidenfelder ,  Helmut Witteler ,  Bernd Laubusch ,  Hans-Peter Seelmann-Eggebert

    发明人： Thomas Heidenfelder ,  Helmut Witteler ,  Bernd Laubusch ,  Hans-Peter Seelmann-Eggebert

    IPC分类号： C22B15/00 ,  C22B3/08 ,  C22B3/16 ,  C22B7/00 ,  C22B3/34 ,  C22B3/00 ,  C22B59/00

    CPC分类号： C22B15/0071 ,  C22B3/0031 ,  C22B3/08 ,  C22B3/165 ,  C22B7/007 ,  C22B19/22 ,  C22B59/00 ,  Y02P10/234 ,  Y02P10/236

    摘要： Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.

    摘要翻译： 含水浸出剂组合物及其使用方法包括：（a）提供含金属的化合物; 和（b）使含金属化合物进行酸消化，包括使含金属化合物与含水浸出剂接触; 其中所述含水浸出剂包含选自以下的混合物：（i）硫酸和一种或多种烷烃磺酸，其烷烃部分选自丙基，乙基和甲基，烷基磺酸与硫酸的重量比 酸为1：1000至1：1; （ii）硫酸和一种或多种烷烃磺酸盐，其烷烃部分选自丙基，乙基和甲基，烷基磺酸与硫酸的重量比为1:9至1:99。

    ACTIVATED SEMICONDUCTOR COMPOUNDS HAVING INCREASED ELECTROCHEMICAL REACTIVITY AND ASSOCIATED METHODS THEREOF
    10.
    发明申请
    ACTIVATED SEMICONDUCTOR COMPOUNDS HAVING INCREASED ELECTROCHEMICAL REACTIVITY AND ASSOCIATED METHODS THEREOF 审中-公开
    具有增加电化学反应活性的活性半导体化合物及其相关方法

    公开(公告)号：US20160201162A1

    公开(公告)日：2016-07-14

    申请号：US14992783

    申请日：2016-01-11

    申请人： FLSmidth A/S

    发明人： David J. Chaiko ,  Sara (Sally) Rocks

    IPC分类号： C22B15/00 ,  C22B3/08 ,  C22B3/22 ,  H01B1/02

    CPC分类号： C22B15/0071 ,  C22B3/08 ,  C22B3/22 ,  H01B1/02 ,  Y02P10/236

    摘要： Disclosed are novel compounds which display enhanced reactive properties due, in part, to induced lattice strain. The new compounds demonstrate accelerated leaching of copper under oxidizing conditions. The activated compounds are produced under conditions of time, temperature, Eh, and pH which retard the rate of lattice strain relaxation. Further disclosed are methods of making and using the novel compounds.

    摘要翻译： 公开了由于部分地诱导晶格应变而显示出增强的反应性质的新型化合物。 新化合物在氧化条件下显示铜的加速浸出。 活化的化合物在时间，温度，Eh和pH条件下产生，这些条件可以延缓晶格应变松弛的速率。 还公开了制备和使用新化合物的方法。