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    Separation and recovery of nickel and cobalt in ammoniacal systems
    3.
    发明授权
    Separation and recovery of nickel and cobalt in ammoniacal systems 失效
    镍和钴在氨基酸系统中的分离和回收

    公开(公告)号：US5174812A

    公开(公告)日：1992-12-29

    申请号：US439377

    申请日：1990-05-14

    申请人： Malcolm J. Price ,  John G. Reid

    发明人： Malcolm J. Price ,  John G. Reid

    IPC分类号： C22B23/00 ,  C01G51/12 ,  C01G53/00 ,  C22B3/26 ,  C22B3/30

    CPC分类号： C01G53/003 ,  C01G51/12 ,  C22B3/0017 ,  C22B3/0021 ,  Y02P10/234

    摘要： A process for the separation and recovery of nickel from an ammoniacal ammonium carbonate liquor containing nickel II ions and cobalt III ions by liquid-liquid extraction where ammoniacal ammonium carbonate solutions are the only aqueous phases involved in the process. The process includes the successive steps of: (a) oxidizing the majority of any cobalt II ammines in the ammoniacal liquid to cobalt III; (b) extracting nickel from the ammoniacal liquor with an organic reagent, which reagent may also contain a suitable modifying reagent, to form a nickel loaded organic phase and an ammoniacal ammonium carbonate phase containing cobalt; (c) stripping the nickel loaded organic phase characterized by contacting the organic phase with an ammoniacal ammonium carbonate solution to form a nickel loaded aqueous strip liquor.

    摘要翻译： PCT No.PCT / AU88 / 00144 Sec。 371日期1990年5月14日 102（e）日期1990年5月14日PCT提交1988年5月19日PCT公布。 出版物WO88 / 09389 日本1990年12月1日。一种通过液 - 液萃取从包含镍II离子和钴III离子的氨基碳酸铵液体中分离和回收镍的方法，其中氨基碳酸铵溶液是涉及该方法的唯一水相。 该方法包括以下连续步骤：（a）将氨水中的大部分任何钴II氨氧化成钴III; （b）用有机试剂从氨液中提取镍，该试剂还可含有合适的改性剂，以形成负载镍的有机相和含有钴的氨基碳酸铵相; （c）剥离负载镍的有机相，其特征在于使有机相与氨基碳酸铵溶液接触以形成负载镍的水性带状液。

    Selective precipitation of cobalt and nickel amine complexes
    4.
    发明授权
    Selective precipitation of cobalt and nickel amine complexes 失效
    选择性沉淀钴和镍胺络合物

    公开(公告)号：US3928530A

    公开(公告)日：1975-12-23

    申请号：US52981774

    申请日：1974-12-05

    申请人： INT NICKEL CO

    发明人： BAKKER HERMAN F ,  BELL MALCOLM C

    IPC分类号： C01G51/12 ,  C01G53/12 ,  C22B23/04

    CPC分类号： C22B23/0492 ,  C01G51/12 ,  C01G53/12

    摘要： A process for separating nickel and cobalt copresent in ammine chloride solutions wherein divalent cobalt is oxidized to the trivalent state by air or oxygen. The solution is then maintained at a temperature between about 60* and 120*C. to precipitate cobalt as trivalent cobalt chloropentammine chloride. Nickel is thereafter separated from the solution by precipitation as nickel hexammine chloride.

    摘要翻译： 一种分离镍和钴共沉淀在氯化铵溶液中的方法，其中二价钴被空气或氧气氧化成三价状态。 然后将溶液保持在约60℃和120℃之间的温度下，以三价氯化氯氯化胺氯化钴的形式沉淀钴。 然后通过作为氯化六氯化镍沉淀从溶液中分离出镍。

    Producing cobalt (III) hexammine sulfate from nickel cobalt sulfides
    8.
    发明授权
    Producing cobalt (III) hexammine sulfate from nickel cobalt sulfides 失效
    从硫酸镍钴生产硫酸钴（III）

    公开(公告)号：US06949232B2

    公开(公告)日：2005-09-27

    申请号：US10157915

    申请日：2002-05-31

    申请人： Gavin Kerry Wyllie Freeman ,  Ockert Gerbrandt Pauw ,  Russell Peter Kofluk ,  James John Budac

    发明人： Gavin Kerry Wyllie Freeman ,  Ockert Gerbrandt Pauw ,  Russell Peter Kofluk ,  James John Budac

    IPC分类号： C01G51/12 ,  C22B23/00

    CPC分类号： C01G51/12

    摘要： There is provided an improvement in a process for producing cobalt (III) hexammine sulphate which process comprises oxidatively pressure leaching nickel cobalt sulphides in an ammoniacal ammonium sulphate solution. The nickel and cobalt sulphides are oxidized to sulphates, and an ammoniacal leach liquor in which dissolved cobalt is predominantly in the (III) oxidation state is produced. The ammoniacal leach liquor is combined with ammonia to precipitate the triple salt of cobalt (III) hexammine sulphate, nickel (II) hexammine and ammonium sulphate which is further treated to produce a crystalline cobalt (III) hexammine sulphate and a nickel enriched leach liquor. The improvement involves the provision of a second oxidative pressure treatment effective to maximize the formation of the desired cobalt (III) hexammine ion, prior to the triple salt precipitation step.

    摘要翻译： 提供了一种用于生产硫酸六硫酸钴的方法的改进，该方法包括在氨硫酸铵溶液中将镍钴硫化物氧化浸出。 镍和钴的硫化物被氧化成硫酸盐，产生溶解的钴主要处于（III）氧化态的氨浸出液。 将氨浸出液与氨结合，沉淀出硫酸钴（III），硫酸镍（II）和硫酸铵的三重盐，进一步处理以产生结晶的硫酸钴（III）和硫酸镍浸出液。 改进涉及提供第二氧化压力处理，其有效地在三盐沉淀步骤之前最大化所需的钴（III）六亚胺离子的形成。

    Hydrometallurgical process for recovery of cobalt
    9.
    发明申请
    Hydrometallurgical process for recovery of cobalt 失效
    用于回收钴的湿法冶金工艺

    公开(公告)号：US20030223928A1

    公开(公告)日：2003-12-04

    申请号：US10157915

    申请日：2002-05-31

    发明人： Gavin Kerry Wyllie Freeman ,  Ockert Gerbrandt Pauw ,  Russell Peter Kofluk ,  James John Budac

    IPC分类号： C01G051/12

    CPC分类号： C01G51/12

    摘要： There is provided an improvement in a process for producing cobalt (III) hexammine sulphate which process comprises oxidatively pressure leaching nickel cobalt sulphides in an ammoniacal ammonium sulphate solution. The nickel and cobalt sulphides are oxidized to sulphates, and an ammoniacal leach liquor in which dissolved cobalt is predominantly in the (III) oxidation state is produced. The ammoniacal leach liquor is combined with ammonia to precipitate the triple salt of cobalt (III) hexammine sulphate, nickel (II) hexammine and ammonium sulphate which is further treated to produce a crystalline cobalt (III) hexammine sulphate and a nickel enriched leach liquor. The improvement involves the provision of a second oxidative pressure treatment effective to maximize the formation of the desired cobalt (III) hexammine ion, prior to the triple salt precipitation step.

    摘要翻译： 提供了一种用于生产硫酸六硫酸钴的方法的改进，该方法包括在氨硫酸铵溶液中将镍钴硫化物氧化浸出。 镍和钴的硫化物被氧化成硫酸盐，产生溶解的钴主要处于（III）氧化态的氨浸出液。 将氨浸出液与氨结合，沉淀出硫酸钴（III），硫酸镍（II）和硫酸铵的三重盐，进一步处理以产生结晶的硫酸钴（III）和硫酸镍浸出液。 改进涉及提供第二氧化压力处理，其有效地在三盐沉淀步骤之前最大化所需的钴（III）六亚胺离子的形成。