HYDROMETALLURGICAL PLANT FOR NICKEL OXIDE ORE AND METHOD FOR OPERATING SAID HYDROMETALLURGICAL PLANT
    1.
    发明授权
    HYDROMETALLURGICAL PLANT FOR NICKEL OXIDE ORE AND METHOD FOR OPERATING SAID HYDROMETALLURGICAL PLANT 有权
    用于氧化镍矿的氢化工厂及操作所述的氢化工厂的方法

    公开(公告)号:EP2975142B1

    公开(公告)日:2017-12-20

    申请号:EP14760507.5

    申请日:2014-01-23

    IPC分类号: C22B23/00 C22B3/00

    摘要: The present invention makes it possible to increase ore throughput and improve productivity without causing a poor reaction and a decrease in operation efficiency. A hydrometallurgical plant 10 according to the present invention includes: a leaching facility 11 provided with leaching treatment tanks 11 (n) in a plurality of lines to perform a leaching treatment; a preliminary neutralization facility 12 provided with neutralization treatment tanks in two stages to perform pH adjustment of leach slurry; and a solid-liquid separation facility 13 made up of a single line to perform solid-liquid separation of leach slurry which is pH-adjusted and discharged from the preliminary neutralization facility 12, in which the preliminary neutralization facility 12 is provided with neutralization treatment tanks 12A (n) of a first stage in a plurality of lines so as to correspond to the respective leaching treatment tanks 11 (n) , and is configured such that leach slurries which are pH-adjusted in the neutralization treatment tanks 12A (n) of the first stage are merged in a neutralization treatment tank 12B of a second stage made up of a single line, and merged leach slurry is transported to the solid-liquid separation facility 13.

    NICKEL POWDER PRODUCTION METHOD
    2.
    发明公开
    NICKEL POWDER PRODUCTION METHOD 审中-公开
    VERFAHREN ZUR HERSTELLUNG冯尼康

    公开(公告)号:EP3144084A1

    公开(公告)日:2017-03-22

    申请号:EP15748828.9

    申请日:2015-02-17

    IPC分类号: B22F9/26

    摘要: Provided is a method for producing fine nickel powder used as suitable seed crystals for producing nickel powder from a solution containing a nickel ammine sulfate complex. The method for producing nickel powder sequentially comprises: a mixing step of adding, to a solution containing a nickel ammine sulfate complex, an insoluble solid which is insoluble in the solution to form a mixed slurry; a reduction and precipitation step of charging a reaction vessel with the mixed slurry and then blowing hydrogen gas into the mixed slurry in the reaction vessel to reduce nickel complex ions contained in the mixed slurry to form nickel precipitate on a surface of the insoluble solid; and a separation step of separating the nickel precipitate on the surface of the insoluble solid from the surface of the insoluble solid to form nickel powder.

    摘要翻译: 本发明提供一种从含有硫酸镍络合物的溶液中制造用作生产镍粉的合适晶种的细镍粉的方法。 依次制备镍粉的方法包括:向含有硫酸镍络合物的溶液中加入不溶于所述溶液以形成混合浆料的不溶性固体的混合步骤; 还原沉淀步骤,将反应容器装入混合浆料中,然后将氢气吹入反应容器中的混合浆液中以还原混合浆料中的镍络合物离子,以在不溶性固体的表面上形成镍沉淀物; 以及从不溶性固体的表面分离不溶性固体表面上的镍沉淀物以形成镍粉末的分离步骤。