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1. 发明公开

EP4339158A3 METHOD FOR RECOVERING METALS FROM LITHIUM ION BATTERY WASTE 审中-实审转让
公开(公告)号：EP4339158A3
公开(公告)日：2024-07-03
申请号：EP23198606.8
申请日：2022-12-26
申请人： JX Metals Corporation
发明人： ARIYOSHI, Hirotaka , ITO, Junichi , ARAKAWA, Junichi , ABE, Hiroshi
IPC分类号： C22B3/04 , C01D15/02 , C22B3/06 , C22B3/44 , C22B3/00 , C22B26/12 , C22B47/00 , C01D15/06 , C01D15/08 , C01F7/043 , C01F11/18 , C01F11/46 , C01G49/02 , C01G51/10 , H01M10/54 , C01G53/10
CPC分类号： C22B26/12 , C22B3/04 , C22B3/06 , C22B3/44 , C22B23/0407 , C22B47/0054 , C01D15/02 , C01D15/06 , C01G53/10 , C01G51/10 , C01D15/08 , C01F11/18 , C01F11/462 , C01G49/02 , C01F7/043 , Y02P10/20 , Y02W30/84 , H01M10/54
摘要： Provided is a method for efficiently recovering metals from lithium ion battery waste while reducing the use of sodium hydroxide as a pH adjuster.
A method for recovering metals from lithium ion battery waste includes wet processing of leaching metals containing lithium from lithium ion battery waste with an acid, and extracting the metals from the metal-containing solution in which the metals are dissolved, in which the lithium extracted in the wet processing is used as a pH adjuster used in the wet processing.

2. 发明授权

EP3967661B1 PROCESS FOR PREPARING BATTERY GRADE METAL SULPHATE SOLUTIONS 有权转让
公开(公告)号：EP3967661B1
公开(公告)日：2023-07-26
申请号：EP20195318.9
申请日：2020-09-09
发明人： LANTTO, Cornelia , NIEMI, Tom , ALISAARI, Pekka , LINDELL, Esa , LUOMA, Rauno , LAUKKANEN, Tuomo , TYNJÄLÄ, Pekka , LASSI, Ulla
IPC分类号： C01G53/10 , C22B7/00 , C01G51/10

3. 发明公开

EP4098617A1 METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY 审中-实审
公开(公告)号：EP4098617A1
公开(公告)日：2022-12-07
申请号：EP21760065.9
申请日：2021-02-23
申请人： SK Innovation Co., Ltd.
发明人： HONG, Suk Joon , HA, Hyeon Bae , KIM, Ji Min , SUNG, Min Ji , SON, Sung Real
IPC分类号： C01D15/02 , C01D15/08 , C01G53/04 , C01G53/10 , C01G51/04 , C01G51/10 , C01G45/02 , C01G45/10 , H01M10/54
摘要： In a method for recovering an active metal of a lithium secondary battery, a cathode active material mixture is prepared from a cathode of a lithium secondary battery. A first reductive process using a first reductive reaction gas and a second reductive process using a second reductive reaction gas that has a higher reaction source concentration than that of the first reductive reaction gas are performed sequentially and continuously to convert the cathode active material mixture into a preliminary precursor mixture. A lithium precursor is recovered from the preliminary precursor mixture. A lithium recovery ratio may be increased by a stepwise reduction while preventing an increase of heating value.

4. 发明公开

EP3795717A1 SULFURIC ACID SOLUTION PRODUCTION METHOD, AND ELECTROLYSIS VESSEL WHICH CAN BE USED IN SAID PRODUCTION METHOD 审中-实审
公开(公告)号：EP3795717A1
公开(公告)日：2021-03-24
申请号：EP19803829.1
申请日：2019-04-19
申请人： SUMITOMO METAL MINING CO., LTD.
发明人： WATANABE Hiroto , MATSUOKA Itsumi , SENBA Yusuke , KOBAYASHI Hiroshi
IPC分类号： C25B1/00 , C01G51/10 , C01G53/10 , C25B9/00 , C25B13/02 , H01M4/525
摘要： A method for manufacturing a sulfuric acid solution in which a metal is highly efficiently dissolved with a high anode current density while suppressing a passivation, and an electrolyzer used in this manufacturing method are provided. The method for manufacturing the sulfuric acid solution includes an initial electrolyte supply step of supplying a chloride ion-containing sulfuric acid solution as an initial electrolyte in an electrolyzer (10) inside of which is divided into an anode chamber (21) and a cathode chamber (22) by a diaphragm, and an electrolyte taking out step of supplying a current to the anode (13) and a cathode (14) disposed in the electrolyzer (10) and subsequently taking out a metal dissolved electrolyte in which a metal constituting an anode (13) is dissolved from the anode chamber (21). This configuration ensures inhibiting the metal dissolved in a side of the anode (13) from moving to a side of the cathode (14), and suppressing a formation of a passivation in the anode (13) side. Therefore, a high-quality sulfuric acid solution in which the metal is dissolved is efficiently manufacturable.

5. 发明授权

EP2949626B1 METHOD FOR PRODUCING HIGH-PURITY NICKEL SULFATE AND METHOD FOR REMOVING IMPURITY ELEMENT OF MAGNESIUM FROM SOLUTION CONTAINING NICKEL 有权
公开(公告)号：EP2949626B1
公开(公告)日：2018-08-08
申请号：EP14742850.2
申请日：2014-01-20
申请人： Sumitomo Metal Mining Co., Ltd.
发明人： HEGURI Shin-ichi , OZAKI Yoshitomo , KUDO Keiji
IPC分类号： C01G53/10 , C22B3/00 , C01G53/06
CPC分类号： C01G53/10 , C01G53/06 , C01P2006/80 , C22B23/0407 , C22B23/0461
摘要： Provided are an impurity-element removing method for selectively removing magnesium from a nickel-containing solution, and a method for producing high-purity nickel sulfate using the impurity-element removing method. The production method includes a production process in the production method of producing high-purity nickel sulfate from a nickel-containing solution, and the nickel-containing solution in the production process is subjected to an impurity-element removal treatment that includes: a hydroxylation step of adding an alkali hydroxide to the nickel-containing solution in the production process to form a hydroxylated slurry; a carbonation step of adding an alkali carbonate to the hydroxylated slurry to form a carbonated slurry, and recovering nickel component from the solution; a solid-liquid separation step for the slurry thus obtained; and a neutralization step of subjecting a solution after reaction obtained by solid-liquid separation to a neutralization, and recovering an impurity element included in the nickel-containing solution in the production process.

6. 发明公开

EP0567373A1 Sulfate ferreux hydraté fluide, et procédé pour fluidiser des sulfates métalliques polyhydratés 失效
标题翻译： Flisessendes hydratisiertes Eisen-II-Sulfat und Verfahren zurVerflüssigungvon polyhydratisierten Metallsulfaten。
公开(公告)号：EP0567373A1
公开(公告)日：1993-10-27
申请号：EP93400979.6
申请日：1993-04-15
申请人： SOCADOUR
发明人： Ardiaco, Jean-Claude , Kneip, Alain
IPC分类号： C01G49/14 , C01G1/10 , C01F7/50 , C01F5/40 , C01F7/74 , C01G3/10 , C01G9/06 , C01G37/08 , C01G45/10 , C01G51/10 , C01G53/10
CPC分类号： C01G49/14 , C01B17/96 , C01G1/10
摘要： L'invention se rapporte à un sulfate ferreux heptahydraté technique traité pour éliminer des traces d'eau intercristalline contenant de l'acide libre et ainsi le rendre susceptible d'écoulement libre. Le traitement consiste à le mélanger avec des phosphates calciques anhydres broyées finement, contenant au moins un atome de calcium pour un atome de phosphore. Au contact de l'acide sulfurique, il se forme à partir d'orthophosphates tri ou bicalciques, ou leur précurseur pyrophosphate et métaphosphate, des orthophosphates bi ou monocalci- ques, qui cristallisent avec de l'eau de substitution. A partir d'un sulfate ferreux brut, qui s'agglomère en masses, on obtient des produits parfaitement fluides contenant de 90 à 97 % de cristaux de sulfate de fer heptahydraté, et d'aspect très voisin du sulfate ferreux heptahydraté. On peut associer ce traitement à un traitement classique, tel que mélange avec un sulfate ferreux partiellement déshydraté et un neutralisant tel que carbonate de calcium. Par ailleurs le procédé est applicable à d'autres sulfates métalliques hydratés cristallisés, sulfate cuivrique, sulfates d'aluminium, de magnésium et de zinc.
摘要翻译：处理了硫酸亚铁七水合物，以除去痕量含有游离酸的晶间水，从而使其能够自由流动。处理方法是将其与每一磷原子含有至少一个钙原子的精细研磨的无水磷酸钙混合。与取代的水结晶的二价或一次性正磷酸盐与硫酸接触，由正磷酸三钙或二磷酸钙或其焦磷酸盐和偏磷酸盐前体形成。从粗制的硫酸亚铁，其聚集成质量，获得含有90-97％的硫酸铁七水合物晶体的完全流体产物，并且在外观上与七水硫酸亚铁非常相似。该处理可以与常规处理组合使用，例如与部分脱水的硫酸亚铁和中和剂如碳酸钙混合。此外，该方法可以应用于其它结晶水合金属硫酸盐，硫酸铜和铝，硫酸镁和锌。

8. 发明授权

EP4225697B9 VERFAHREN ZUR RÜCKGEWINNUNG VON METALLEN AUS SCHWARZER MASSE 有权
公开(公告)号：EP4225697B9
公开(公告)日：2023-12-20
申请号：EP22776889.2
申请日：2022-09-05
发明人： SURIANO, Anne-Marie , BRYSON, Leslie James , ESCHEN, Marcus
IPC分类号： C01B25/30 , C01D15/02 , C01D15/08 , C01G45/02 , C01G51/04 , C01G53/04 , C01G53/10 , C22B3/00 , C22B3/44 , C22B7/00 , C22B23/00 , C22B26/12 , H01M10/54 , H01M10/052

9. 发明公开

EP4234500A1 HYDROMETALLURGICAL METHOD FOR RECOVERING NICKEL SULFATE 无效
公开(公告)号：EP4234500A1
公开(公告)日：2023-08-30
申请号：EP22818166.5
申请日：2022-01-07
申请人： ECOPRO MATERIALS, CO., LTD.
发明人： KIM, Dong Hee , KIM, Yong Hun , KIM, Woo Jin
IPC分类号： C01G53/10 , C10G53/04 , C01G53/00 , B01D11/04
摘要： The present disclosure relates to a hydrometallurgical recovery method for nickel sulfate. More specifically, the present disclosure relates to a hydrometallurgical nickel sulfate recovery method in which a wet smelting process is used to extract a high-purity nickel sulfate aqueous solution from a raw material containing nickel (Ni), cobalt (Co), and manganese (Mn). In the method, sodium hydroxide or sodium carbonate is not used as a neutralizer but nickel hydroxide is used, which prevents salts of impurities from being generated as a precipitate in a solvent extraction process, thereby increasing process efficiency of the solvent extraction process.

10. 发明公开

EP4225697A1 VERFAHREN ZUR RÜCKGEWINNUNG VON METALLEN AUS SCHWARZER MASSE 有权
公开(公告)号：EP4225697A1
公开(公告)日：2023-08-16
申请号：EP22776889.2
申请日：2022-09-05
申请人： Aurubis AG
发明人： SURIANO, Anne-Marie , BRYSON, Leslie James , ESCHEN, Marcus
IPC分类号： C01B25/30 , C01D15/02 , C01D15/08 , C01G45/02 , C01G51/04 , C01G53/04 , C01G53/10 , C22B3/00 , C22B3/44 , C22B7/00 , C22B23/00 , C22B26/12 , H01M10/54 , H01M10/052

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