公开(公告)号：US09068242B2

公开(公告)日：2015-06-30

申请号：US13976160

申请日：2012-01-27

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

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

IPC分类号： C22B7/00 ,  C22B23/00 ,  C22B26/12 ,  C22B3/00 ,  H01M10/54 ,  H01M4/525 ,  H01M10/0525

CPC分类号： C22B7/006 ,  C22B7/007 ,  C22B23/0415 ,  C22B26/12 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/54 ,  Y02P10/234 ,  Y02W30/84

摘要： The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which valuable metals can be leached efficiently, the amount of a reducing agent used can be reduced, and cost reduction can be achieved. In the present invention, a positive electrode material is immersed in an acidic solution together with a metal having a lower reduction potential than a reduction potential of hydrogen, whereby valuable metals are leached out from a positive-electrode active substance.

摘要翻译： 本发明提供了一种有价值的金属浸出方法和有价值的金属收集方法，其中有价值的金属可以有效地浸出，可以减少所用的还原剂的量，并且可以实现成本降低。 在本发明中，将正极材料与具有比还原电位低的还原电位的金属一起浸渍在酸性溶液中，由此从正极活性物质中浸出有价值的金属。

公开(公告)号：US20130269484A1

公开(公告)日：2013-10-17

申请号：US13976160

申请日：2012-01-27

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

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

IPC分类号： C22B7/00

CPC分类号： C22B7/006 ,  C22B7/007 ,  C22B23/0415 ,  C22B26/12 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/54 ,  Y02P10/234 ,  Y02W30/84

摘要： The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which valuable metals can be leached efficiently, the amount of a reducing agent used can be reduced, and cost reduction can be achieved. In the present invention, a positive electrode material is immersed in an acidic solution together with a metal having a lower reduction potential than a reduction potential of hydrogen, whereby valuable metals are leached out from a positive-electrode active substance.

摘要翻译： 本发明提供了一种有价值的金属浸出方法和有价值的金属收集方法，其中有价值的金属可以有效地浸出，可以减少所用的还原剂的量，并且可以实现成本降低。 在本发明中，将正极材料与具有比还原电位低的还原电位的金属一起浸渍在酸性溶液中，由此从正极活性物质中浸出有价值的金属。

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。

公开(公告)号：US09023130B2

公开(公告)日：2015-05-05

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 ,  C22B26/12 ,  H01M10/0525 ,  C22B3/00

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。

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。

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.

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。

公开(公告)号：US09751783B2

公开(公告)日：2017-09-05

申请号：US13583145

申请日：2011-01-06

申请人： Hiroshi Kobayashi ,  Tatsuya Higaki ,  Hirofumi Shoji ,  Norihisa Toki ,  Keiji Kudo ,  Hiroyuki Mitsui ,  Osamu Nakai

发明人： Hiroshi Kobayashi ,  Tatsuya Higaki ,  Hirofumi Shoji ,  Norihisa Toki ,  Keiji Kudo ,  Hiroyuki Mitsui ,  Osamu Nakai

IPC分类号： B01D21/01 ,  C02F1/52 ,  B03D3/00 ,  C02F1/78 ,  C22B47/00 ,  C01F7/00 ,  C22B21/00 ,  C02F1/72 ,  C02F1/66 ,  C02F1/64 ,  B01D21/00 ,  C02F1/00 ,  C01G45/00 ,  C01F1/00 ,  C01G45/02 ,  C02F101/20

CPC分类号： C02F1/66 ,  C01G45/02 ,  C02F1/5236 ,  C02F1/64 ,  C02F1/72 ,  C02F1/722 ,  C02F1/78 ,  C02F2101/20 ,  C02F2101/206 ,  C02F2209/06 ,  C22B47/00

摘要： The wastewater treatment method is to obtain demanganized wastewater, through a step wherein an acid or an alkali is added to sulfuric acid acidified wastewater to adjust pH to not less than 4.0 and not more than 6.0, whereby the sulfuric acid acidified wastewater is separated into a dealuminized solution and an aluminum precipitate; a step wherein a slurrying solution is added to the aluminum precipitate to form a slurry, then an alkali is added to adjust pH to not less than 9.0 and not more than 9.5, whereby an pH-adjusted aluminum precipitate slurry is formed; a step wherein an alkali is added to the dealuminized solution to adjust pH to not less than 8.0 and not more than 9.0; and others.

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。

公开(公告)号：US20110135547A1

公开(公告)日：2011-06-09

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： C01G53/04 ,  C01G51/04 ,  C01G51/00

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 an 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 and the like, from the sulfuric acid aqueous solution containing nickel and cobalt, and the impurity elements, iron, aluminum, manganese and the like.The method is characterized by comprising the following steps (1) to (5). step (1): to subject the sulfuric acid aqueous solution to oxidation neutralization treatment. step (2): then, to subject the solution to neutralization treatment, and to separate and recover mixed hydroxides containing nickel and cobalt. step (3): to subject the mixed hydroxides to dissolution treatment in a sulfuric acid solution having a concentration of equal to or higher than 50% by mass. step (4): to subject the concentrated solution to solvent extraction treatment, using a phosphate ester-based acidic extraction agent. step (5): by adding a neutralizing agent to the resultant extraction residual liquid, to subject the solution to the neutralization treatment, and to separate and recover nickel hydroxide generated.

摘要翻译： 从硫酸水溶液中回收镍的方法，通过从硫酸水溶液中有效地分离出铁，铝，锰等的杂质元素，以镍工业材料的原料回收镍，以有效利用的形式回收镍 含有镍和钴，以及杂质元素，铁，铝，锰等。 该方法的特征在于包括以下步骤（1）至（5）。 步骤（1）：使硫酸水溶液进行氧化中和处理。 步骤（2）：然后，使溶液进行中和处理，并分离和回收含有镍和钴的混合氢氧化物。 步骤（3）：使混合氢氧化物在浓度等于或高于50质量％的硫酸溶液中进行溶解处理。 步骤（4）：使用浓缩溶液进行溶剂萃取处理，使用磷酸酯基酸性提取剂。 步骤（5）：通过向所得到的萃取残留液中加入中和剂，使溶液进行中和处理，分离并回收生成的氢氧化镍。