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公开(公告)号：EP2902512A1
公开(公告)日：2015-08-05
申请号：EP14837943.1
申请日：2014-04-08
发明人： TAKANO, Masatoshi , OZAKI, Yoshitomo , ASANO, Satoshi , GOTO, Masahiro , KUBOTA, Fukiko , BABA, Yuzo
CPC分类号： C22B59/00 , B01J20/22 , B01J20/26 , B01J45/00 , B01J49/50 , C22B3/24 , C22B3/42 , C22B7/005 , Y02P10/234
摘要： To efficiently and selectively recover scandium from an acid solution containing calcium, magnesium and scandium. In the present invention, an acid solution containing calcium, magnesium and scandium is brought into contact with a scandium recovering resin impregnated with an amide derivative represented by the following general formula for an hour or more. In the formula, R 1 and R 2 each represent the same or different alkyl groups. The alkyl group can be a straight chain or a branched chain. R 3 represents a hydrogen atom or an alkyl group. R 4 represents a hydrogen atom or any group other than an amino group, which is bound to the α carbon as an amino acid. The amide derivative is preferably any one or more of glycinamide derivatives, histidinamide derivatives, lysinamide derivatives and aspartic acid amide derivatives.
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公开(公告)号：EP2902512B1
公开(公告)日：2019-02-27
申请号：EP14837943.1
申请日：2014-04-08
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公开(公告)号：EP4414065A1
公开(公告)日：2024-08-14
申请号：EP22907431.5
申请日：2022-12-13
发明人： IKEDA, Osamu , ASANO, Satoshi , TAKANO, Masatoshi , MATSUMOTO, Shin-ya , KUDO, Yohei , HEGURI, Shin-ichi
IPC分类号： B01J20/30
CPC分类号： B01J20/30
摘要： To provide a method for producing granulated body for lithium adsorption that easily maintain their shapes with a high adsorption capability and more robust granulated body. The method for producing the granulated body for lithium adsorption includes a kneading step of kneading a powder of a lithium adsorbent precursor, an organic binder, and a hardening agent for accelerating hardening of the organic binder to obtain a kneaded material, a granulating step of granulating the kneaded material to obtain granulated body, and a baking step of baking the granulated body at 90°C or more and 120°C or less to obtain granulated body for lithium adsorption. This aspect allows obtaining the granulated body for lithium adsorption that easily maintain their shapes with a high adsorption capability and more robust granulated body.
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公开(公告)号：EP4289979A3
公开(公告)日：2024-03-13
申请号：EP23198073.1
申请日：2018-08-21
摘要： Provided is a method for separating copper from nickel and cobalt, which is capable of efficiently and selectively separating copper, and nickel and cobalt from an alloy containing copper, nickel and cobalt such as a highly anticorrosive alloy that is obtained by subjecting a waste lithium ion battery to a dry treatment and contains copper, nickel and cobalt. According to the present invention, an alloy containing copper, nickel and cobalt is brought into contact with an acid in the coexistence of a sulfurization agent, thereby obtaining a solid that contains copper and a leachate that contains nickel and cobalt.
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公开(公告)号：EP4397778A1
公开(公告)日：2024-07-10
申请号：EP22864605.5
申请日：2022-08-31
发明人： SHOUJI, Hirofumi , TAKENOUCHI, Hiroshi , MATSUOKA, Itsumi , SANJO, Shota , MATSUGI, Takumi , HEGURI, Shin-ichi , ASANO, Satoshi
摘要： Provided is a method for effectively obtaining a solution containing nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium-ion battery or the like. The present invention is an alloy processing method for obtaining a solution containing nickel and/or cobalt from an alloy that contains copper as well as nickel and/or cobalt, said method including a leaching step for carrying out an acid solution leaching treatment on an alloy-containing slurry in the presence of a sulfurising agent to obtain a leachate and a leaching residue. In the leaching step, the leaching treatment is carried out with the initial concentration of the alloy-containing slurry adjusted to between 100 g/L and 250 g/L. Moreover, in the leaching step, the leaching treatment is preferably carried out while controlling the redox potential (using a silver/silver chloride electrode as a reference electrode) to 200 mV or less. Furthermore, in the leaching step, the leaching treatment is preferably carried out in the presence of the sulfurising agent in an amount in the range of 1.05 to 1.25 equivalent weight (S-mol/Cu-mol) in relation to the amount of copper contained in the alloy.
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公开(公告)号：EP4108633A1
公开(公告)日：2022-12-28
申请号：EP21756744.5
申请日：2021-01-08
发明人： MATSUMOTO, Shin-ya , TAKANO, Masatoshi , HEGURI, Shin-ichi , ASANO, Satoshi , IKEDA, Osamu , KUDO, Yohei
摘要： A method for producing lithium hydroxide that allows reducing a load of removing divalent or more ions with an ion-exchange resin is provided. The method for producing lithium hydroxide includes steps (1) to (3) below. (1) a neutralization step: a step of adding an alkali to a first lithium chloride containing liquid to obtain a post-neutralization liquid, (2) an ion-exchange step: a step of bringing the post-neutralization liquid into contact with an ion-exchange resin to obtain a second lithium chloride containing liquid, and (3) a conversion step: a step of electrodialyzing the second lithium chloride containing liquid to obtain a lithium hydroxide containing liquid. Since this producing method allows roughly removing divalent or more ions in the neutralization step, a load of metal removal with the ion-exchange resin is reducible.
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公开(公告)号：EP2813587A1
公开(公告)日：2014-12-17
申请号：EP12868180.6
申请日：2012-02-10
发明人： ASANO, Satoshi , ISHIDA, Hitoshi , NAKAI, Takayuki
CPC分类号： C22B26/12 , C22B3/0005 , C22B3/44 , C22B7/006 , H01M10/052 , H01M10/54 , Y02P10/234 , Y02W30/84
摘要： To provide a method for recovering lithium, that is capable of efficiently recovering lithium without containing impurities, such as phosphorus and fluorine, from a lithium-containing solution containing lithium hexafluorophosphate and separated from a lithium ion battery. In the present invention, alkali hydroxide is added to the lithium-containing solution and the solution is made to have pH 9 or more, a precipitate of a phosphate and a fluoride salt is formed, the formed precipitate is separated and removed, and then lithium is recovered from filtrate.
摘要翻译： 提供一种回收锂的方法，其能够从含有六氟磷酸锂的锂离子溶液中并且从锂离子电池中分离出来，能够有效地回收锂而不含有诸如磷和氟的杂质。 在本发明中，将碱金属氢氧化物添加到含锂溶液中，使溶液的pH为9以上，形成磷酸盐和氟化物盐的析出物，分离除去所形成的析出物， 从滤液中回收。
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公开(公告)号：EP2781609A1
公开(公告)日：2014-09-24
申请号：EP12850545.0
申请日：2012-11-01
发明人： MAEBA, Kazunari , KAWAKAMI, Yukie , KUDO, Keiji , TAKANO, Masatoshi , ISHIDA Hitoshi , ASANO, Satoshi , TANAKA, Masahiro
CPC分类号： C22B59/00 , C22B3/44 , C22B7/007 , Y02P10/234
摘要： The object of the present invention is to provide a method for recovering a rare earth element, which is capable of efficiently recovering a rare earth element with high recovery rate without using any expensive chemicals, solvents or the like. In the present invention, a water-soluble salt other than sulfate ions is allowed to coexist with an aqueous solution that contains a rare earth element, and then an alkali metal sulfate is added to the aqueous solution, thereby producing a precipitate of a double sulfate of the rare earth element.
摘要翻译： 本发明的目的是提供一种稀土元素的回收方法，该方法能够在不使用任何昂贵的化学品，溶剂等的情况下以高回收率有效地回收稀土元素。 在本发明中，使硫酸根离子以外的水溶性盐与含有稀土元素的水溶液共存，然后向该水溶液中加入碱金属硫酸盐，由此产生双硫酸盐沉淀 的稀土元素。
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公开(公告)号：EP4400615A1
公开(公告)日：2024-07-17
申请号：EP22867198.8
申请日：2022-08-24
发明人： SHOUJI, Hirofumi , TAKENOUCHI, Hiroshi , MATSUOKA, Itsumi , SANJO, Shota , MATSUGI, Takumi , ASANO, Satoshi , HEGURI, Shin-ichi
摘要： A method is provided which enables selectively leaching nickel and/or cobalt from an alloy that contains copper and nickel and/or cobalt in a waste lithium ion battery.
This alloy processing method involves obtaining a solution that contains nickel and/or cobalt from an alloy that contains copper and nickel and/or cobalt, wherein the alloy processing method involves a leaching step for adding an acid solution to the alloy in a state in which a sulfurizing agent is also present, and obtaining a leachate and a leaching residue by performing leaching processing while controlling the redox potential (the reference electrode being a silver / silver chloride electrode) to at least 100mV and less than 250mV. In the leaching processing in the leaching step, an operation is performed that temporarily decreases the redox potential to less than or equal to -100mV.-
公开(公告)号：EP4289979A2
公开(公告)日：2023-12-13
申请号：EP23198073.1
申请日：2018-08-21
IPC分类号： C22B15/00
摘要： Provided is a method for separating copper from nickel and cobalt, which is capable of efficiently and selectively separating copper, and nickel and cobalt from an alloy containing copper, nickel and cobalt such as a highly anticorrosive alloy that is obtained by subjecting a waste lithium ion battery to a dry treatment and contains copper, nickel and cobalt. According to the present invention, an alloy containing copper, nickel and cobalt is brought into contact with an acid in the coexistence of a sulfurization agent, thereby obtaining a solid that contains copper and a leachate that contains nickel and cobalt.
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