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    Zinc recovery process
    42.
    发明申请
    Zinc recovery process 有权
    锌回收工艺

    公开(公告)号：US20040237720A1

    公开(公告)日：2004-12-02

    申请号：US10488916

    申请日：2004-04-26

    Inventor： John Moyes ,  Frank Houllis

    IPC: C22B019/20

    CPC classification number: C22B19/26 ,  C22B3/10 ,  C22B19/22 ,  C25C1/16 ,  Y02P10/234

    Abstract: A process for the recovery of zinc metal from a zinc mineral includes the steps of leaching the zinc mineral in a solution including a halide species formed from two or more different halides, to leach the zinc into the solution. The zinc-bearing solution is then electrolysed to yield zinc metal and to generate the halide species. The electrolysed solution including the halide species is then returned to the leaching step. A portion of the electrolysed solution can be removed as a bleed stream from a cathode compartment of an electrolytic cell of the electrolysis process and processed to remove manganese as manganese dioxide precipitate by adding thereto limestone, and the halide species from an anode compartment of the electrolysis process. In this regard, the pH and Eh of the solution can regulated in a manner that favours the formation of the manganese dioxide precipitate over the formation of a precipitate of zinc.

    Abstract translation: 从锌矿物中回收锌金属的方法包括以下步骤：将锌矿物浸出在包含由两种或多种不同卤化物形成的卤化物物质的溶液中以将锌浸入溶液中。 然后将含锌溶液电解以产生锌金属并产生卤化物种类。 然后将包含卤化物物质的电解溶液返回到浸出步骤。 电解溶液的一部分可以作为来自电解过程的电解槽的阴极室的排出流除去，并通过加入石灰石加工成除去作为二氧化锰沉淀物的锰，并且来自电解的阳极室的卤化物种类 处理。 在这方面，溶液的pH和Eh可以以有利于在形成锌沉淀物中形成二氧化锰沉淀物的方式进行调节。

    Method for leaching copper concentrate
    43.
    发明申请
    Method for leaching copper concentrate 失效
    浸出铜精矿的方法

    公开(公告)号：US20040060395A1

    公开(公告)日：2004-04-01

    申请号：US10451196

    申请日：2003-06-19

    Inventor： Matti Hamalainen

    IPC: C22B003/08

    CPC classification number: C22B3/10 ,  C22B15/0069 ,  Y02P10/234 ,  Y02P10/236

    Abstract: This invention relates to a method where sulfidic iron-bearing copper concentrate is leached on the countercurrent principle, in a chloride environment. The leaching takes place with the aid of bivalent copper and an oxygen-bearing gas as a multistage continuous process, under normal pressure, at a temperature, which as highest corresponds to the boiling point of the solution. Part of the insoluble solid matter is returned, counter to the main flow of solid matter, to one of the previous leaching stages or reactors where, as a result of the extended leaching time, the leach waste iron is recovered mostly as hematite.

    Abstract translation: 本发明涉及一种在氯化物环境中以逆流原理浸出含硫铁的铜精矿的方法。 借助于二价铜和含氧气体作为多级连续方法，在常压下，在最高对应于溶液沸点的温度下进行浸出。 一部分不溶性固体物质与固体物质的主要流动相对返回到之前的浸出阶段或反应器之一，由于浸出时间的延长，浸出废铁主要以赤铁矿回收。

    Method of producing an active mineral liquid from granite
    45.
    发明授权
    Method of producing an active mineral liquid from granite 有权

    公开(公告)号：US06451273B2

    公开(公告)日：2002-09-17

    申请号：US09737395

    申请日：2000-12-15

    Applicant: Dae-Kyu Jung ,  Kyu-Heon Lee

    Inventor： Dae-Kyu Jung ,  Kyu-Heon Lee

    IPC: C22B300

    CPC classification number: C22B3/10 ,  C22B1/00 ,  C22B3/14 ,  C22B61/00 ,  Y02P10/234

    Abstract: A method of extracting active mineral liquid from a rock such as granite is described. This method comprises charging an extraction vessel with finely divided granite at ambient temperature and pressure; introducing an aqueous ammonia solution with agitating and then diluted sulfuric acid into the vessel; introducing 98% ethyl alcohol at below 80° C. into the vessel to elevate the inner pressure of the vessel to 2-3 kg/cm2 for facilitating the formation of complexes; and agitating the resulting reaction mixture for 20-160 minutes at 80° C. to 85° C. while maintaining the internal pressure of the vessel. The active mineral liquid is advantageously used as a mineral source for soils, animals, plants, the human body and so forth, and as an agent for the purification of waterworks as well as for the treatment of wastewater.

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