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    A METHOD FOR PURIFICATION OF A COBALT CONTAINING SOLUTION BY CONTINUOUS ION EXCHANGE
    2.
    发明授权
    A METHOD FOR PURIFICATION OF A COBALT CONTAINING SOLUTION BY CONTINUOUS ION EXCHANGE 有权
    连续离子交换法净化含钴溶液的方法

    公开(公告)号：EP2960209B1

    公开(公告)日：2017-11-15

    申请号：EP15172618.9

    申请日：2015-06-17

    申请人： NORILSK NICKEL HARJAVALTA OY

    发明人： SAINIO, Tuomo ,  SUPPULA, Ilkka

    IPC分类号： C01G51/00 ,  B01D15/18 ,  C01G51/10 ,  C22B3/42

    CPC分类号： C22B3/42 ,  B01D15/185 ,  B01D15/362 ,  C01G51/003 ,  C01G51/10 ,  Y02P10/234 ,  Y02P20/133

    摘要： The invention relates to a method for purification of a cobalt containing feed solution from impurity metals by processing the feed solution through a continuous counter-current ion exchange process comprising of several beds containing cationic ion exchange material arranged in interconnectable zones 1, 2, 3 - N in a simulated counter-current moving bed arrangement, wherein each bed is interconnectable with two adjacent beds, the method comprising: (a) introducing a desorbent solution, which has sufficiently low pH that impurity metals are desorbed, into one or more beds of the first, regeneration zone (zone I) and collecting an extract containing impurity metals from the same bed and/or from another bed downstream within the said regeneration zone, (b) introducing a wash solution of pH higher than the desorbent solution into one or more of said beds of the regeneration zone and collecting an extract containing impurity metals and desorbent from the said bed and/or from another beds downstream within the first, regeneration zone, (c) introducing an aqueous eluent of pH sufficiently low to desorb Co but sufficiently high not to desorb impurity metals into one or more beds of zone downstream (zone II) to said regeneration zone, (d) introducing the cobalt containing feed solution, which has pH sufficiently high to adsorb impurity metals but sufficiently low to avoid adsorbing Co, into one or more beds of the next zone downstream (zone III) from the zone of step (c) and collecting a cobalt product raffinate solution from the said bed and/or from another beds downstream, wherein the positions where the cobalt containing feed, eluent, desorbent, and wash solution are introduced and where the impurity metals containing extract, spent wash solution, and cobalt containing raffinate are collected are changed to adjacent beds downstream to simulate the counter-current flow of the solid and liquid phases after such periods of time that cobalt propagates downstream with fluid phase in zones II and III, impurity metals propagate upstream with the simulated flow of the solid phase in zones II and III, impurity metals are desorbed in zone I, and the desorbent is washed from the resin in zone I.

    A METHOD FOR PURIFICATION OF A COBALT CONTAINING SOLUTION BY CONTINUOUS ION EXCHANGE
    5.
    发明公开
    A METHOD FOR PURIFICATION OF A COBALT CONTAINING SOLUTION BY CONTINUOUS ION EXCHANGE 有权
    VERFAHREN ZUR REINIGUNG EINER KOBALTHALTIGENLÖSUNGDURCH KONTINUIERLICHEN IONENAUSTAUSCH

    公开(公告)号：EP2960209A1

    公开(公告)日：2015-12-30

    申请号：EP15172618.9

    申请日：2015-06-17

    申请人： NORILSK NICKEL HARJAVALTA OY

    发明人： SAINIO, Tuomo ,  SUPPULA, Ilkka

    IPC分类号： C01G51/00 ,  B01D15/18 ,  C01G51/10 ,  C22B3/42

    CPC分类号： C22B3/42 ,  B01D15/185 ,  B01D15/362 ,  C01G51/003 ,  C01G51/10 ,  Y02P10/234 ,  Y02P20/133

    摘要： The invention relates to a method for purification of a cobalt containing feed solution from impurity metals by processing the feed solution through a continuous counter-current ion exchange process comprising of several beds containing cationic ion exchange material arranged in interconnectable zones 1, 2, 3 - N in a simulated counter-current moving bed arrangement, wherein each bed is interconnectable with two adjacent beds, the method comprising:
    (a) introducing a desorbent solution, which has sufficiently low pH that impurity metals are desorbed, into one or more beds of the first, regeneration zone (zone I) and collecting an extract containing impurity metals from the same bed and/or from another bed downstream within the said regeneration zone,
    (b) introducing a wash solution of pH higher than the desorbent solution into one or more of said beds of the regeneration zone and collecting an extract containing impurity metals and desorbent from the said bed and/or from another beds downstream within the first, regeneration zone,
    (c) introducing an aqueous eluent of pH sufficiently low to desorb Co but sufficiently high not to desorb impurity metals into one or more beds of zone downstream (zone II) to said regeneration zone,
    (d) introducing the cobalt containing feed solution, which has pH sufficiently high to adsorb impurity metals but sufficiently low to avoid adsorbing Co, into one or more beds of the next zone downstream (zone III) from the zone of step (c) and collecting a cobalt product raffinate solution from the said bed and/or from another beds downstream,

    wherein the positions where the cobalt containing feed, eluent, desorbent, and wash solution are introduced and where the impurity metals containing extract, spent wash solution, and cobalt containing raffinate are collected are changed to adjacent beds downstream to simulate the counter-current flow of the solid and liquid phases after such periods of time that cobalt propagates downstream with fluid phase in zones II and III, impurity metals propagate upstream with the simulated flow of the solid phase in zones II and III, impurity metals are desorbed in zone I, and the desorbent is washed from the resin in zone I.

    摘要翻译： 本发明涉及一种通过连续逆流离子交换工艺处理进料溶液来净化含杂质金属的进料溶液的方法，该方法包括布置在可互连区域1,2,3间的阳离子交换材料， N，其中每个床可与两个相邻的床相互连接，所述方法包括：（a）将具有足够低的pH值的解吸附溶液（其具有足够低的杂质金属解吸附）引入一个或多个 第一再生区（区域I），并且从所述再生区域内的同一床层和/或从另一床层收集含有杂质金属的提取物，（b）将pH高于解吸剂溶液的洗涤溶液引入到一个或多个 更多的再生区的床，并从所述床和/或从另一床收集含有杂质金属和解吸剂的提取物d （c）引入pH足够低的含水洗脱液以解吸Co但足够高以使杂质金属不能分解到所述再生区的下游（区域II）的一个或多个区域中，（d） 引入具有足够高的pH以吸附杂质金属但足够低以避免吸附Co的含钴进料溶液到从步骤（c）的区域下游（区域III）的下一个区域的一个或多个床中，并收集钴 来自所述床和/或从下游的另一个床的产物萃余液溶液，其中引入含钴进料，洗脱液，解吸剂和洗涤溶液的位置以及含杂质金属的提取物，废洗涤溶液和含钴萃余液的位置是 收集的物质在下游改变到相邻的床，以模拟在液体p在下游传播的这样的时间段之后的固相和液相的逆流流动 在区域II和III中，杂质金属在区域II和III中通过固相的模拟流动在上游传播，杂质金属在区域I中解吸，并且解吸剂从区域I中的树脂洗涤。