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    Process of solvent extraction of copper
    1.
    发明授权
    Process of solvent extraction of copper 有权
    铜的溶剂萃取工艺

    公开(公告)号：US07449160B2

    公开(公告)日：2008-11-11

    申请号：US10529176

    申请日：2004-05-13

    申请人： Kenji Takeda ,  Kouji Ando ,  Keiji Kudo ,  Masaki Imamura

    发明人： Kenji Takeda ,  Kouji Ando ,  Keiji Kudo ,  Masaki Imamura

    IPC分类号： B01D11/04 ,  C22B15/00 ,  C22B15/14

    CPC分类号： C22B15/0069 ,  C22B3/0068 ,  C22B15/0089 ,  Y02P10/234 ,  Y02P10/236

    摘要： A process for efficient separation/recovery of copper involving selective extraction of the copper ion with the aid of an organic extractant from an aqueous chloride solution containing copper and one or more concomitant elements, discharged from an extractive metallurgy of non-ferrous metals or the like, and subsequent stripping. The process of solvent extraction of copper which treats an aqueous chloride solution containing copper and one or more concomitant elements to separate/recover copper, comprising the first step for selective extraction of copper from the aqueous chloride solution by mixing the solution with an extractant of organic solvent composed of tributyl phosphate as the major component after adjusting the solution at an oxidation-reduction potential of 0 to 350 mV (based on an Ag/AgCl electrode), and the second step for stripping of copper by mixing the extractant in which copper is stripped with an aqueous solution.

    摘要翻译： 一种有效分离/回收铜的方法，涉及通过有机萃取剂从含有铜和一种或多种伴生元素的氯化水溶液中有选择地提取铜离子，该有机萃取剂从有色金属等的萃取冶金排出 ，随后剥离。 铜的溶剂萃取方法，其处理含有铜和一种或多种伴生元素的氯化水溶液以分离/回收铜，其包括通过将溶液与有机萃取剂混合来从氯化水溶液中选择性提取铜的第一步骤 在氧化还原电位为0〜350mV（基于Ag / AgCl电极）调整溶液后，以磷酸三丁酯为主要成分的溶剂，通过将铜的提取剂 用水溶液汽提。

    Nickel refining method
    2.
    发明授权
    Nickel refining method 有权

    公开(公告)号：US07138005B2

    公开(公告)日：2006-11-21

    申请号：US10238022

    申请日：2002-09-09

    申请人： Keiji Kudo ,  Masaki Imamura ,  Kouji Ando

    发明人： Keiji Kudo ,  Masaki Imamura ,  Kouji Ando

    IPC分类号： C22B23/00 ,  C22B23/06

    CPC分类号： C22B23/0423 ,  C22B23/0469 ,  Y02P10/212

    摘要： The present invention provides a nickel refining method which uses nickel sulfide produced from nickel oxide ore using a hydrometallurgical process, as the raw material, and in which chlorine leaching is performed using a chloride solution, wherein a cementation reaction is caused between the nickel sulfide and copper ions, using copper ions, preferably included in the leaching solution itself, and a portion of the nickel in the nickel sulfide is leached into the solution, and the remaining nickel and copper are left as a residue, and copper and nickel are chlorine leached from this residue, and wherein the cementation reaction is performed with an oxidation-reduction potential as measured by a silver-silver chloride electrode of below −20 mV, preferably below −100 mV.

    Method for extracting copper with solvent
    3.
    发明申请
    Method for extracting copper with solvent 有权
    用溶剂萃取铜的方法

    公开(公告)号：US20060147360A1

    公开(公告)日：2006-07-06

    申请号：US10529176

    申请日：2004-05-13

    申请人： Kenji Takeda ,  Kouji Ando ,  Keiji Kudo ,  Musaki Imamura

    发明人： Kenji Takeda ,  Kouji Ando ,  Keiji Kudo ,  Musaki Imamura

    IPC分类号： B01D11/00

    CPC分类号： C22B15/0069 ,  C22B3/0068 ,  C22B15/0089 ,  Y02P10/234 ,  Y02P10/236

    摘要： A process for efficient separation/recovery of copper involving selective extraction of the copper ion with the aid of an organic extractant from an aqueous chloride solution containing copper and one or more concomitant elements, discharged from an extractive metallurgy of non-ferrous metals or the like, and subsequent stripping. The process of solvent extraction of copper which treats an aqueous chloride solution containing copper and one or more concomitant elements to separate/recover copper, comprising the first step for selective extraction of copper from the aqueous chloride solution by mixing the solution with an extractant of organic solvent composed of tributyl phosphate as the major component after adjusting the solution at an oxidation-reduction potential of 0 to 350 mV (based on an Ag/AgCl electrode), and the second step for stripping of copper by mixing the extractant in which copper is stripped with an aqueous solution.

    摘要翻译： 一种有效分离/回收铜的方法，涉及通过有机萃取剂从含有铜和一种或多种伴生元素的氯化水溶液中有选择地提取铜离子，该有机萃取剂从有色金属等的萃取冶金排出 ，随后剥离。 铜的溶剂萃取方法，其处理含有铜和一种或多种伴生元素的氯化水溶液以分离/回收铜，其包括通过将溶液与有机萃取剂混合来从氯化水溶液中选择性提取铜的第一步骤 在氧化还原电位为0〜350mV（基于Ag / AgCl电极）调整溶液后，以磷酸三丁酯为主要成分的溶剂，通过将铜的提取剂 用水溶液汽提。

    METHOD FOR SEPARATING POSITIVE-POLE ACTIVE SUBSTANCE AND METHOD FOR RECOVERING VALUABLE METALS FROM LITHIUM ION BATTERY
    6.
    发明申请
    METHOD FOR SEPARATING POSITIVE-POLE ACTIVE SUBSTANCE AND METHOD FOR RECOVERING VALUABLE METALS FROM LITHIUM ION BATTERY 有权
    用于分离正极活性物质的方法和从锂离子电池中回收有价值金属的方法

    公开(公告)号：US20130247721A1

    公开(公告)日：2013-09-26

    申请号：US13991512

    申请日：2011-12-14

    申请人： Keiji Kudo ,  Hitoshi Ishida ,  Satoshi Asano ,  Yukie Kawakami

    发明人： Keiji Kudo ,  Hitoshi Ishida ,  Satoshi Asano ,  Yukie Kawakami

    IPC分类号： C22B7/00

    CPC分类号： C22B7/008 ,  C22B1/005 ,  C22B7/006 ,  C22B23/0461 ,  C22B26/12 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P10/234 ,  Y02W30/84

    摘要： The present invention aims at improving a recovery rate of a positive-pole active substance and preventing a recovery loss of valuable metals when a positive-pole active substance is separated from a lithium ion battery. In the present invention, a material resulting from battery dismantling obtained by dismantling a lithium ion battery is stirred using a surfactant solution, whereby a positive-pole active substance is separated from a positive-electrode substrate. Also, it is preferable that an alkaline solution is added to a positive-electrode material of a material resulting from battery dismantling, thereby dissolving a positive-electrode substrate to which a positive-pole active substance adheres to obtain a slurry containing the positive-pole active substance, and a surfactant solution is added to the slurry to disperse the positive-pole active substance in the slurry, whereby the positive-pole active substance is separated from the alkaline solution.

    摘要翻译： 本发明的目的在于提高正极活性物质的回收率，并且当正极活性物质与锂离子电池分离时，可以防止贵重金属的回收损失。 在本发明中，通过使用表面活性剂溶液搅拌将通过拆卸锂离子电池而获得的电池拆卸得到的材料进行搅拌，由此正极活性物质与正极基板分离。 此外，优选将碱溶液添加到由电池拆解得到的材料的正极材料中，从而溶解正极活性物质粘附到正极活性物质的正极基板，从而获得含有正极的浆料 将活性物质和表面活性剂溶液加入到浆料中以将正极活性物质分散在浆料中，由此使正极活性物质与碱性溶液分离。

    Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process
    7.
    发明授权
    Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process 有权
    浓缩从铜湿法冶炼过程中排出的浸出渣中所含的贵金属的方法

    公开(公告)号：US07422621B2

    公开(公告)日：2008-09-09

    申请号：US10896066

    申请日：2004-07-22

    申请人： Koji Ando ,  Keiji Kudo

    发明人： Koji Ando ,  Keiji Kudo

    IPC分类号： C22B3/10

    CPC分类号： C22B11/023 ,  C22B7/007 ,  C22B11/044 ,  C22B15/0069 ,  C22B15/0086 ,  Y02P10/214 ,  Y02P10/234 ,  Y02P10/236

    摘要： A method for concentrating precious metals contained in the leaching residue discharged from a copper hydrometallurgical process by removing pyrite from the residue. A method for concentrating precious metals in the leaching residue containing pyrite, elementary sulfur, precious metals and gangue, discharged from a copper hydrometallurgical process which comprises steps of leaching in an acidic, aqueous solution, reducing the copper-containing leaching liquor and electrolysis for copper recovery to treat copper sulfide ores, comprising (1) pyrolysis step in which the leaching residue is thermally treated at 550.degree. C. or higher in a non-oxidative atmosphere, to produce the calcined ore containing pyrrhotite, precious metals and gangue, and (2) a re-leaching step in which the calcined ore is re-leached in an acidic, aqueous solution, to be separated into the re-leaching residue and iron-leached liquor, the former containing elementary sulfur, precious metals and gangue.

    摘要翻译： 通过从残留物中除去黄铁矿，浓缩从铜湿法冶炼过程排出的浸出残渣中所含的贵金属的方法。 一种浓缩贵金属的方法，该方法是将从黄铜冶炼工艺中排出的含黄铁矿，元素硫，贵金属和ang石的浸出残渣中浓缩贵金属的方法，该方法包括在酸性水溶液中浸出，还原含铜浸出液和电解铜 回收处理硫化铜矿石，包括（1）热解步骤，其中浸出残渣在550℃下进行热处理。 在非氧化性气氛中为C.或更高，以产生含有磁黄铁矿，贵金属和ang石的煅烧矿石，和（2）将煅烧矿​​石在酸性水溶液中再浸出的再浸出步骤， 分离为再浸出渣和铁浸液，前者含有元素硫，贵金属和ang石。

    Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process
    8.
    发明申请
    Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process 有权
    浓缩从铜湿法冶炼过程中排出的浸出渣中所含的贵金属的方法

    公开(公告)号：US20050022629A1

    公开(公告)日：2005-02-03

    申请号：US10896066

    申请日：2004-07-22

    申请人： Koji Ando ,  Keiji Kudo

    发明人： Koji Ando ,  Keiji Kudo

    IPC分类号： C22B1/02 ,  C22B3/04 ,  C22B3/06 ,  C22B3/10 ,  C22B7/00 ,  C22B11/00 ,  C22B11/02 ,  C22B15/00

    CPC分类号： C22B11/023 ,  C22B7/007 ,  C22B11/044 ,  C22B15/0069 ,  C22B15/0086 ,  Y02P10/214 ,  Y02P10/234 ,  Y02P10/236

    摘要： A method for concentrating precious metals contained in the leaching residue discharged from a copper hydrometallurgical process by removing pyrite from the residue. A method for concentrating precious metals in the leaching residue containing pyrite, elementary sulfur, precious metals and gangue, discharged from a copper hydrometallurgical process which comprises steps of leaching in an acidic, aqueous solution, reducing the copper-containing leaching liquor and electrolysis for copper recovery to treat copper sulfide ores, comprising (1) pyrolysis step in which the leaching residue is thermally treated at 550° C. or higher in a non-oxidative atmosphere, to produce the calcined ore containing pyrrhotite, precious metals and gangue, and (2) a re-leaching step in which the calcined ore is re-leached in an acidic, aqueous solution, to be separated into the re-leaching residue and iron-leached liquor, the former containing elementary sulfur, precious metals and gangue.

    摘要翻译： 通过从残留物中除去黄铁矿，浓缩从铜湿法冶炼过程排出的浸出残渣中所含的贵金属的方法。 一种浓缩贵金属的方法，该方法是将从黄铜冶炼工艺中排出的含黄铁矿，元素硫，贵金属和ang石的浸出残渣中浓缩贵金属的方法，该方法包括在酸性水溶液中浸出，还原含铜浸出液和电解铜 回收处理硫化铜矿石，其包括（1）热解步骤，其中浸出残渣在非氧化性气氛中在550℃或更高温度下进行热处理，以生产含有磁黄铁矿，贵金属和ang石的煅烧矿石和（ 2）再煅烧步骤，其中煅烧矿石在酸性水溶液中再浸出，分离成再浸出渣和铁浸出液​​，前者含有元素硫，贵金属和ang石。

    Method for recovering nickel from sulfuric acid aqueous solution
    10.
    发明授权
    Method for recovering nickel from sulfuric acid aqueous solution 有权
    从硫酸水溶液中回收镍的方法

    公开(公告)号：US08580213B2

    公开(公告)日：2013-11-12

    申请号：US13057683

    申请日：2010-02-02

    申请人： Hiroshi Kobayashi ,  Hirofumi Shoji ,  Norihisa Toki ,  Keiji Kudo ,  Tatsuya Higaki

    发明人： Hiroshi Kobayashi ,  Hirofumi Shoji ,  Norihisa Toki ,  Keiji Kudo ,  Tatsuya Higaki

    IPC分类号： B01D11/00

    CPC分类号： C01G45/003 ,  C01G51/003 ,  C01G51/04 ,  C01G53/003 ,  C01G53/04 ,  C22B3/44 ,  C22B23/043 ,  C22B23/0461 ,  Y02P10/234

    摘要： A method for recovering nickel from sulfuric acid aqueous solution, for recovering nickel in an effectively utilizable form as a raw material of nickel industry material, by separating efficiently impurity elements of iron, aluminum, manganese, etc., from the sulfuric acid aqueous solution containing nickel and cobalt, and the impurity elements, iron, aluminum, manganese, etc. The method comprises the following steps: subject the sulfuric acid aqueous solution to oxidation neutralization treatment; then subject the solution to neutralization treatment, and separate and recover mixed hydroxides containing nickel and cobalt; subject the mixed hydroxides to dissolution treatment in a sulfuric acid solution having a concentration of equal to or higher than 50% by mass; subject the concentrated solution to solvent extraction treatment, using a phosphate ester-based acidic extraction agent; add a neutralizing agent to the resultant extraction residual liquid; subject the solution to the neutralization treatment, and separate and recover nickel hydroxide generated.

    摘要翻译： 一种从硫酸水溶液中回收镍的方法，用于以有效利用的形式回收镍作为镍工业材料的原料，通过将铁，铝，锰等的杂质元素从含有 镍和钴，以及杂质元素，铁，铝，锰等。该方法包括以下步骤：将硫酸水溶液进行氧化中和处理; 然后对溶液进行中和处理，分离回收含镍和钴的混合氢氧化物; 将混合氢氧化物溶解在浓度等于或高于50质量％的硫酸溶液中; 采用浓缩溶液进行溶剂萃取处理，使用磷酸酯类酸性提取剂; 向所得萃取残余液体中加入中和剂; 对溶液进行中和处理，并分离并回收生成的氢氧化镍。