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1. 发明申请

WO2010076030A1 RECOVERY OF COBALT AND PGM METALS FROM COBALT ALLOYS CONTAINING PRECIOUS METALS BY SELECTIVE DISSOLUTION 审中-公开
标题翻译：通过选择性溶解从含有重金属的钴合金中回收钴和PGM金属
公开(公告)号：WO2010076030A1
公开(公告)日：2010-07-08
申请号：PCT/EP2009/009328
申请日：2009-12-30
申请人： UMICORE , OOSTERHOF, Harald , VLEUGELS, Eddy
发明人： OOSTERHOF, Harald , VLEUGELS, Eddy
IPC分类号： C22B23/00 , C22B11/00 , C22B7/00 , C22B3/08 , C22B3/46 , C22B15/00
CPC分类号： C22B11/046 , C22B3/08 , C22B3/46 , C22B7/007 , C22B11/048 , C22B15/0089 , C22B23/026 , C22B23/0461 , Y02P10/214 , Y02P10/22 , Y02P10/224 , Y02P10/234 , Y02P10/236
摘要： This disclosure concerns a process for the recovery of PGM from the cobalt-based, PGM-bearing alloys that are typically obtained after smelting spent GTL catalysts. The process comprises the steps of: - powdering the alloy to a mean particle size of less than 250 μm; - providing a mixed tank reactor equipped with means for feeding H 2 SO 4 and a CuSO 4 solution; - leaching in a mixed tank reactor the powdered alloy in a first acidic aqueous solution comprising H 2 SO 4 and CuSO 4 , thereby obtaining a CoSO 4 solution and a PGM-bearing metallic Cu residue; - isolating the PGM-bearing metallic Cu residue from the first CoSO 4 solution, by solid/liquid separation; - leaching in a mixed tank reactor the PGM-bearing metallic Cu residue in a second acidic aqueous solution comprising H 2 SO 4 and an oxidizing agent, thereby obtaining a CuSO 4 solution and a PGM concentrate; - isolating the PGM concentrate from the CuSO 4 solution, by solid/liquid separation; - returning the CuSO 4 solution to the step of leaching the powdered alloy. The main advantage of this process is that no H 2 is formed at any time, thus considerably enhancing the safety of the process compared to the classical acidic lixiviation of metallic compounds.
摘要翻译：本公开涉及从通常在熔化废GTL催化剂之后获得的基于钴的含PGM的合金中回收PGM的方法。该方法包括以下步骤： - 将合金粉碎至平均粒度小于250μm; - 提供配备有用于供给H 2 SO 4和CuSO 4溶液的装置的混合罐式反应器; - 在混合罐式反应器中将粉末状合金浸入包含H 2 SO 4和CuSO 4的第一种酸性水溶液中，从而得到CoSO 4溶液和含PGM的金属Cu残余物; 通过固/液分离从第一种CoSO4溶液中分离含PGM的金属Cu残留物; - 在混合罐式反应器中将含有PGM的金属Cu残留物在包含H 2 SO 4和氧化剂的第二种酸性水溶液中浸出，从而得到CuSO 4溶液和PGM浓缩物; - 通过固/液分离从PGSO 4溶液中分离PGM浓缩物; - 将CuSO 4溶液返回到浸出粉末状合金的步骤。该方法的主要优点是在任何时候都不形成H2，因此与经典的金属化合物的酸性浸出相比，显着提高了工艺的安全性。

2. 发明申请

WO2019081432A8 PROCESS FOR THE RECOVERY OF METALS FROM COBALT-BEARING MATERIALS 审中-公开
公开(公告)号：WO2019081432A8
公开(公告)日：2019-05-02
申请号：PCT/EP2018/078896
申请日：2018-10-22
申请人： UMICORE
发明人： VERMEULEN, Isabel , OOSTERHOF, Harald , COECK, Luc , HACCURIA, Elien , CRIVITS, Tijl , SUETENS, Thomas , BALTES, Michael
IPC分类号： C22B23/02 , C22B3/00
摘要： A process is divulged for the recovery of metals from a metal-bearing material containing, in oxidized form, more than 1% of Co, a total of Co and Ni of more than 15%, and more than 1% Mg, comprising the step of: - smelting said metal-bearing material in a bath furnace together with slag formers, thereby producing an alloy phase with more than 80%, preferably more than 90% of the Co, and less than 1% of the Mg, and a slag phase, by applying reducing smelting conditions, and by selecting CaO, SiO 2 , and Al 2 O 3 as slag formers, in amounts so as to obtain a final slag composition according to the ratio's 0.25 2 /AI2O 3 2 /CaO 10%; and, - separating the alloy phase from the slag phase. This process ensures the quantitative recovery of Co in an alloy phase along with other metals such as Ni, while collecting Mg into a slag. Being free of Mg, the obtained alloy can be economically refined by using hydrometallurgical techniques, in particular for the preparation of precursors for use as cathode material in Li-ion batteries.

3. 发明申请

WO2018184876A1 PROCESS FOR THE RECOVERY OF LITHIUM 审中-公开
公开(公告)号：WO2018184876A1
公开(公告)日：2018-10-11
申请号：PCT/EP2018/057569
申请日：2018-03-26
申请人： UMICORE
发明人： OOSTERHOF, Harald , DUPONT, David , DROUARD, Wendy
IPC分类号： C22B3/08 , C22B7/04 , C22B26/12
摘要： The present invention relates to an enhanced process for the recovery of lithium from compositions also containing aluminum. An example of such a metallurgical compositions is the metallurgical slag that is obtained when recycling lithium-ion batteries or their derived products using a pyrometallurgical smelting process. Acid leaching of such a slag, followed by neutralization to precipitate aluminum leads to poor lithium yields as lithium tends to co-precipitate with aluminum. A process is presented wherein aluminum is selectively precipitated using a source of phosphate at a controlled pH preferably between 3 and 4.

4. 发明申请

WO2018082961A1 PROCESS FOR THE RECOVERY OF LITHIUM 审中-公开
标题翻译：锂的回收工艺
公开(公告)号：WO2018082961A1
公开(公告)日：2018-05-11
申请号：PCT/EP2017/077048
申请日：2017-10-24
申请人： UMICORE
发明人： OOSTERHOF, Harald , DUPONT, David
IPC分类号： C22B7/04 , C22B26/12
摘要： A process is divulged for the recovery of lithium from metallurgic slags comprising the steps of roasting spodumene to convert it from the alpha to the beta variant; reacting the beta variant with sulfuric acid, using a stoichiometric excess of acid; repulping the reaction product with water, forming an acidic slurry; neutralizing the acidic slurry to a pH between 5 and 7, by addition of at least one neutralizing agent; filtrating the neutralized slurry, thereby obtaining a lithium bearing solution and a residue; characterized that, in either one or both of the steps of repulping and neutralizing the acidic slurry, lithium-bearing metallurgic slag is added as neutralization agent. The lithium-bearing metallurgic slag is used to substitute at least part of the classic neutralizing agent. The lithium in the slag is released,and added to the lithium liberated from the spodumene.
摘要翻译：为了回收来自冶金炉渣的锂，公开了一种方法，其包括焙烧锂辉石以将其从α变为β变体的步骤; 使用化学计量过量的酸使β变体与硫酸反应; 用水再浆化反应产物，形成酸性浆液; 通过加入至少一种中和剂中和酸性浆液至pH值为5至7; 过滤中和的浆液，从而获得含锂溶液和残余物; 其特征在于，在酸化淤浆的再浆化和中和步骤中的任一个或两个步骤中，加入含锂冶金渣作为中和剂。含锂冶金炉渣用于替代传统中和剂的至少一部分。炉渣中的锂被释放出来，并添加到锂辉石中释放出的锂中。

5. 发明申请

WO2020212546A1 PROCESS FOR THE PREPARATION OF PRECURSOR COMPOUNDS FOR LITHIUM BATTERY CATHODES 审中-公开
公开(公告)号：WO2020212546A1
公开(公告)日：2020-10-22
申请号：PCT/EP2020/060806
申请日：2020-04-17
申请人： UMICORE
发明人： OOSTERHOF, Harald , SCOYER, Jean , SCHEUNIS, Lennart , KLAASEN, Bart , CALLEBAUT, Willem
IPC分类号： C22B1/00 , C22B3/00 , H01M6/52 , H01M10/54
摘要： The present disclosure concerns the production of precursor compounds for lithium battery cathodes. Batteries or their scrap are smelted in reducing conditions, thereby forming an alloy suitable for further hydrometallurgical refining, and a slag. The alloy is leached in acidic conditions, producing a Ni-and Co-bearing solution, which is refined. The refining steps are greatly simplified as most elements susceptible to interfere with the refining steps concentrate in the slag. Metals such as Co, Ni and Mn are then precipitated from the solution, forming a suitable starting product for the synthesis of new battery precursor compounds.

6. 发明申请

WO2019081432A1 PROCESS FOR THE RECOVERY OF METALS FROM COBALT-BEARING MATERIALS 审中-公开
公开(公告)号：WO2019081432A1
公开(公告)日：2019-05-02
申请号：PCT/EP2018/078896
申请日：2018-10-22
申请人： UMICORE
发明人： VERMEULEN, Isabel , OOSTERHOF, Harald , COECK, Luc , HACCURIA, Elien , CRIVITS, Tijl , SUETENS, Thomas , BALTES, Michael
IPC分类号： C22B23/02 , C22B3/00
摘要： A process is divulged for the recovery of metals from a metal-bearing material containing, in oxidized form, more than 1% of Co, a total of Co and Ni of more than 15%, and more than 1% Mg, comprising the step of: - smelting said metal-bearing material in a bath furnace together with slag formers, thereby producing an alloy phase with more than 80%, preferably more than 90% of the Co, and less than 1% of the Mg, and a slag phase, by applying reducing smelting conditions, and by selecting CaO, S1O2, and Al203 as slag formers, in amounts so as to obtain a final slag composition according to the ratio's 0.25 10%; and, - separating the alloy phase from the slag phase. This process ensures the quantitative recovery of Co in an alloy phase along with other metals such as Ni, while collecting Mg into a slag. Being free of Mg, the obtained alloy can be economically refined by using hydrometallurgical techniques, in particular for the preparation of precursors for use as cathode material in Li-ion batteries.

7. 发明公开

EP3535429A1 PROCESS FOR THE RECOVERY OF LITHIUM 有权
公开(公告)号：EP3535429A1
公开(公告)日：2019-09-11
申请号：EP17787424.5
申请日：2017-10-24
申请人： Umicore
发明人： OOSTERHOF, Harald , DUPONT, David
IPC分类号： C22B7/04 , C22B26/12
摘要： A process is divulged for the recovery of lithium from metallurgic slags comprising the steps of roasting spodumene to convert it from the alpha to the beta variant; reacting the beta variant with sulfuric acid, using a stoichiometric excess of acid; repulping the reaction product with water, forming an acidic slurry; neutralizing the acidic slurry to a pH between 5 and 7, by addition of at least one neutralizing agent; filtrating the neutralized slurry, thereby obtaining a lithium bearing solution and a residue; characterized that, in either one or both of the steps of repulping and neutralizing the acidic slurry, lithium-bearing metallurgic slag is added as neutralization agent. The lithium-bearing metallurgic slag is used to substitute at least part of the classic neutralizing agent. The lithium in the slag is released, and added to the lithium liberated from the spodumene.

8. 发明公开

EP3607099A1 PROCESS FOR THE RECOVERY OF LITHIUM 有权
公开(公告)号：EP3607099A1
公开(公告)日：2020-02-12
申请号：EP18722894.5
申请日：2018-03-26
申请人： Umicore
发明人： OOSTERHOF, Harald , DUPONT, David , DROUARD, Wendy
IPC分类号： C22B3/08 , C22B7/04 , C22B26/12

9. 发明公开

EP3865597A1 PROCESS FOR SEPARATING NOBLE METALS FROM A CO-, NI- AND/OR CU-BASED METAL ALLOY 审中-公开
公开(公告)号：EP3865597A1
公开(公告)日：2021-08-18
申请号：EP20212616.5
申请日：2020-12-09
申请人： Umicore
发明人： OOSTERHOF, Harald , PEELMAN, Sebastiaan
IPC分类号： C22B3/08 , C22B15/00 , C25C1/08 , C25C1/12 , C22B3/22 , C22B3/00 , C22B7/00 , C22B11/00
摘要： The present invention provides a process for separating noble metals from a Co-, Ni- and/or Cu-based metal alloy, comprising the steps of: a. providing alloy particles comprising (i) Co, Ni and/or Cu, and (ii) at least one noble metal; b. reacting Co, Ni and/or Cu in said alloy particles with an oxidizing agent in an acidic aqueous solution, thereby obtaining (i) a Co-, Ni- and/or Cu-rich leach solution, and (ii) a noble metal-rich residue having a reduced Co-, Ni- and/or Cu-content; and c. separating said Co-, Ni- and/or Cu-rich leach solution from said noble metal-rich residue; characterized in that said oxidizing agent comprises ferric iron, whereby said ferric iron is provided in a stoichiometric excess relative to the total amount of Co, Ni and Cu in said alloy particles.

10. 发明公开

EP3701053A1 PROCESS FOR THE RECOVERY OF METALS FROM COBALT-BEARING MATERIALS 有权
公开(公告)号：EP3701053A1
公开(公告)日：2020-09-02
申请号：EP18789151.0
申请日：2018-10-22
申请人： Umicore
发明人： VERMEULEN, Isabel , OOSTERHOF, Harald , COECK, Luc , HACCURIA, Elien , CRIVITS, Tijl , SUETENS, Thomas , BALTES, Michael
IPC分类号： C22B23/02 , C22B3/00

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