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    ELUTION OF METAL IONS FROM CHELATING RESIN USING AMINO ACID ELUANT
    4.
    发明申请
    ELUTION OF METAL IONS FROM CHELATING RESIN USING AMINO ACID ELUANT 有权
    使用氨基酸溶液从粘合树脂中提取金属离​​子

    公开(公告)号：US20150175728A1

    公开(公告)日：2015-06-25

    申请号：US14414815

    申请日：2013-08-13

    申请人： Dow Global Technologies LLC ,  Rohm and Haas Company

    发明人： Charles R. Marston ,  Stephen M. Smith ,  Matthew L. Rodgers ,  Karen S. Eastman

    IPC分类号： C08F212/36 ,  C08F212/08 ,  B01D15/38

    CPC分类号： C08F212/36 ,  B01D15/3828 ,  B01J45/00 ,  B01J49/50 ,  C08F212/08 ,  C22B3/42 ,  Y02P10/234

    摘要： A method of eluting metal ions from a bed of metal-loaded chelating resin wherein the resin includes a crosslinked styrene-divinylbenzene copolymer matrix with pendent methyleneaminopyridine or phosphonic acid groups and the method includes the step of passing an eluant through the bed to at least partially remove the metal ions from the chelating resin and create a metal-rich eluate, wherein the eluant includes an aqueous solution comprising an amino acid compound having a molecular weight less than 500 Daltons.

    摘要翻译： 一种从金属负载的螯合树脂床中洗脱金属离子的方法，其中树脂包括具有侧链亚甲基氨基吡啶或膦酸基团的交联的苯乙烯 - 二乙烯基苯共聚物基质，并且该方法包括使洗脱剂通过床至少部分地 从螯合树脂中除去金属离子并产生富含金属的洗脱液，其中洗脱剂包括含有分子量小于500道尔顿的氨基酸化合物的水溶液。

    NICKEL AND COBALT RECOVERY USING CONTINUOUS ION EXCHANGE
    5.
    发明申请
    NICKEL AND COBALT RECOVERY USING CONTINUOUS ION EXCHANGE 有权
    使用连续离子交换的镍和钴回收

    公开(公告)号：US20150096412A1

    公开(公告)日：2015-04-09

    申请号：US14241746

    申请日：2013-04-23

    申请人： Dow Global Technologies LLC

    发明人： Charles R. Marston ,  Christopher R. Eicher

    IPC分类号： C22B3/00 ,  C22B3/08 ,  C25C1/08

    CPC分类号： C22B23/043 ,  C22B3/08 ,  C22B3/42 ,  C22B23/0453 ,  C22B23/0461 ,  C22B23/0484 ,  C25C1/08 ,  Y02P10/234

    摘要： A method for recovering nickel and cobalt from a product liquor solution by processing the product liquor solution through a continuous ion exchange process including a plurality of ion exchange beds containing nickel selective ion exchange resin that pass through individual process zones as part of a nickel recovery circuit, wherein the method includes the following steps: (a) passing the product liquor solution through an ion exchange bed to load nickel onto the ion exchange resin and produce a cobalt-containing raffinate solution, (b) passing a sulfuric acid solution through the loaded ion exchange bed to strip nickel from the exchange resin and produce a nickel-containing eluate, (c) passing a rinse solution through the stripped ion exchange bed, (d) adjusting the pH of the cobalt-containing raffinate solution to a pH of at least 2.3, (e) passing the cobalt-containing raffinate solution through an ion exchange bed to pre-load cobalt on the ion exchange resin, (f) repeating step (a) though (e) until the cobalt concentration of the cobalt-containing raffinate solution increases to at least twice that of the product liquor solution, and (g) removing a first portion of the cobalt-containing raffinate solution of step (d) from the nickel recovery circuit for subsequent cobalt recovery, and (h) passing a second portion of the cobalt-containing raffinate solution from step (d) to step (e).

    摘要翻译： 一种从产品液体溶液中回收镍和钴的方法，该方法是通过连续的离子交换方法处理产物液体溶液，所述连续离子交换方法包括多个离子交换床，所述离子交换床包含镍选择性离子交换树脂，其通过作为镍回收回路的一部分的各个工艺区 其中所述方法包括以下步骤：（a）使产物液溶液通过离子交换床以将镍负载到离子交换树脂上并产生含钴萃余液，（b）使硫酸溶液通过所加载的 离子交换床以从交换树脂中剥离镍，并产生含镍洗脱液，（c）使冲洗溶液通过剥离的离子交换床，（d）将含钴萃余液溶液的pH调节至 至少2.3，（e）使含钴萃余液通过离子交换床以在离子交换树脂上负载钴，（f）重复步骤（a） 尽管（e），直到含钴萃余液溶液的钴浓度增加至产物液溶液的钴浓度的至少两倍，和（g）从镍中除去步骤（d）的含钴萃余液溶液的第一部分 用于随后的钴回收的回收回路，和（h）将来自步骤（d）的第二部分含钴萃余液溶液通到步骤（e）。