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    METHODS FOR REDUCING IMPURITIES IN MAGNESIUM, PURIFIED MAGNESIUM, AND ZIRCONIUM METAL PRODUCTION
    6.
    发明授权
    METHODS FOR REDUCING IMPURITIES IN MAGNESIUM, PURIFIED MAGNESIUM, AND ZIRCONIUM METAL PRODUCTION 有权

    公开(公告)号：EP2885435B1

    公开(公告)日：2018-10-24

    申请号：EP13745501.0

    申请日：2013-07-18

    申请人： ATI Properties LLC

    发明人： COFFIN, Scott ,  FAJARDO, Arnel M.

    IPC分类号： C22B9/10 ,  C22B26/22 ,  C22B34/14 ,  C22C23/00

    CPC分类号： C22B9/10 ,  C22B26/22 ,  C22B34/14 ,  C22C23/00

    摘要： A method for reducing impurities in magnesium comprises: combining a zirconium-containing material with a molten low-impurity magnesium including no more than 1.0 weight percent of total impurities in a vessel to provide a mixture; holding the mixture in a molten state for a period of time sufficient to allow at least a portion of the zirconium-containing material to react with at least a portion of the impurities and form intermetallic compounds; and separating at least a portion of the molten magnesium in the mixture from at least a portion of the intermetallic compounds to provide a purified magnesium including greater than 1000 ppm zirconium. A purified magnesium including at least 1000 ppm zirconium and methods for producing zirconium metal using magnesium reductant also are disclosed.

    METHOD OF SEPARATING COBALT AND MAGNESIUM FROM A NICKEL-BEARING EXTRACTION FEED SOLUTION
    9.
    发明公开
    METHOD OF SEPARATING COBALT AND MAGNESIUM FROM A NICKEL-BEARING EXTRACTION FEED SOLUTION 有权
    从含镍提取物的提取液中分离钴和镁的方法

    公开(公告)号：EP3222735A1

    公开(公告)日：2017-09-27

    申请号：EP17161716.0

    申请日：2017-03-17

    申请人： NORILSK NICKEL HARJAVALTA OY

    发明人： LUOMA, Rauno ,  OJA, Arja

    IPC分类号： C22B3/38 ,  C22B3/00 ,  C22B26/22

    CPC分类号： C22B3/0066 ,  C22B23/0453 ,  C22B23/0492 ,  C22B26/22 ,  Y02P10/234

    摘要： A method of separating cobalt and magnesium from a nickel-bearing extraction feed solution (1) with liquid-liquid extraction, wherein a first extraction solution (2) contains cation-exchange extraction reagent insoluble or poorly soluble in said feed solution (1). The method comprises at least the following method stages enabling cobalt, magnesium and nickel to be separated into discrete aqueous solution streams:
    - in an extraction stage (A), the cobalt-, magnesium- and nickel-containing extraction feed solution (1) is extracted with the first extraction solution (2) for providing a cobalt-, magnesium- and nickel-loaded second extraction solution (4) and a primarily nickel-containing raffinate (3),
    - in a washing stage (B), the cobalt-, magnesium- and nickel-loaded second extraction solution (4) is washed in a countercurrent fashion with a primarily cobalt- and sulfuric acid-containing first washing solution (5) whose pH is 0,5-5 for providing a primarily cobalt- and magnesium-loaded third extraction solution (7) and a primarily nickel-containing first wash water (6),
    - in a washing stage (C), the primarily cobalt- and magnesium-loaded third extraction solution (7) is washed in a countercurrent fashion with a water-, cobalt-and sulfuric acid-containing second washing solution (8) whose pH is 0,5-5 for providing a primarily cobalt-loaded fourth extraction solution (10) and a primarily magnesium-containing second wash water (9).

    摘要翻译： 一种用液 - 液萃取从含镍萃取进料溶液（1）中分离钴和镁的方法，其中第一萃取溶液（2）含有不溶或不易溶于所述进料溶液（1）中的阳离子交换萃取试剂。 该方法至少包括以下方法步骤，使得钴，镁和镍能够分离成离散的水溶液流： - 在提取阶段（A）中，含钴，镁和镍的提取进料溶液（1）是 （2）提取以提供负载钴，镁和镍的第二提取溶液（4）和主要含镍提余液（3）; - 在洗涤阶段（B）中， 负载镁和镍的第二提取溶液（4）以主要含钴和硫酸的第一洗涤溶液（5）以逆流方式洗涤，所述第一洗涤溶液（5）的pH值为0.5-5，以提供主要为钴和 负载镁的第三提取溶液（7）和主要含有镍的第一洗涤水（6）; - 在洗涤阶段（C）中，以逆流方式洗涤负载有钴和镁的第三提取溶液 时尚与水，钴和硫酸con 提供pH值为0.5-5的第二洗涤溶液（8）以提供主要负载钴的第四提取溶液（10）和主要含镁的第二洗涤水（9）。