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1.发明授权Method for separating impurities from an acidic solution containing nickel and cobalt and/or scandium 有权从含有镍和钴和/或钪的酸性溶液中分离杂质的方法公开(公告)号：US09458526B2
公开(公告)日：2016-10-04
申请号：US14765307
申请日：2014-03-17
发明人： Masahiro Goto , Fukiko Kubota , Yuzo Baba , Yoshitomo Ozaki , Jiro Hayata , Tatsuya Higaki , Toshihiko Nagakura , Shinya Matsumoto
CPC分类号： C22B59/00 , C22B3/005 , C22B3/44 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A valuable-metal extracting agent of the present invention is expressed by general formula (1). In the formula, R1 and R2 each represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a given group, other than an amino group, that bonds with an α carbon as an amino acid. In general formula (1), the inclusion of a glycine unit, a histidine unit, a lysine unit, an asparagine acid unit, or a normal methylglycine unit is preferred.
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2.发明申请METHOD FOR SEPARATING IMPURITIES FROM AN ACIDIC SOLUTION CONTAINING NICKEL AND COBALT AND/OR SCANDIUM 有权从包含镍和钴和/或硫酸的酸性溶液中分离污染物的方法公开(公告)号：US20160010177A1
公开(公告)日：2016-01-14
申请号：US14765307
申请日：2014-03-17
发明人： Masahiro Goto , Fukiko Kubota , Yuzo Baba , Yoshitomo Ozaki , Jiro Hayata , Tatsuya Higaki , Toshihiko Nagakura , Shinya Matsumoto
CPC分类号： C22B59/00 , C22B3/005 , C22B3/44 , C22B23/0453 , C22B23/0461 , Y02P10/234
摘要： Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A valuable-metal extracting agent of the present invention is expressed by general formula (1). In the formula, R1 and R2 each represent the same or different alkyl groups, R3 represents a hydrogen atom or an alkyl group, and R4 represents a hydrogen atom or a given group, other than an amino group, that bonds with an α carbon as an amino acid. In general formula (1), the inclusion of a glycine unit, a histidine unit, a lysine unit, an asparagine acid unit, or a normal methylglycine unit is preferred.
摘要翻译： 提供了从含有锰，铁，锌和铝等杂质的酸性溶液中有效分离镍，钴和/或钪以及杂质的方法。 本发明的有价值金属提取剂由通式（1）表示。 在该式中，R 1和R 2各自表示相同或不同的烷基，R 3表示氢原子或烷基，R 4表示与α碳键合的氢原子或除了氨基以外的给定基团 氨基酸。 在通式（1）中，优选包含甘氨酸单元，组氨酸单元，赖氨酸单元，天冬酰胺酸单元或正常的甲基甘氨酸单元。
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公开(公告)号：US20230257851A1
公开(公告)日：2023-08-17
申请号：US18014200
申请日：2021-06-29
发明人： Yu Yamashita , Toshihiko Nagakura , Tomoya Hagio
CPC分类号： C22B7/001 , H01M10/54 , C22B1/005 , C22B15/0056 , C22B23/02
摘要： Provided is a method which allows for strict control of an oxygen partial pressure required for the heating and melting of a raw material, and thereby more efficient recovery of a valuable metal. The method for recovering a valuable metal (Cu, Ni, and Co) includes the steps of: preparing a charge comprising at least phosphorus (P) and a valuable metal as a raw material; heating and melting the raw material to form a molten body and then converting the molten body into a molten product comprising an alloy and a slag; and separating the slag from the molten product to recover the alloy comprising the valuable metal, wherein the heating and melting of the raw material comprises directly measuring an oxygen partial pressure in the molten body using an oxygen analyzer, and regulating the oxygen partial pressure based on the obtained measurement result.
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公开(公告)号：US10190189B2
公开(公告)日：2019-01-29
申请号：US15118250
申请日：2015-02-18
摘要： The purpose of the present invention is to recover roughly purified scandium, which is purified to an extent acceptable for a technique for highly purifying scandium, efficiently and without any complicated operation from a neutralization sediment (drainage sediment) generated in neutralizing acid mine drainage which contains a sulfur component. This scandium recovery process includes a washing step (S1) for washing a neutralization sediment (drainage sediment) and a dissolution step (S2) for subjecting the washed sediment obtained in the washing step (S1) to dissolution in an acid. It is preferable that the process further includes a re-dissolution step (S3) for subjecting a dissolution residue which remains after the dissolution in the dissolution step (S2) to dissolution with an acid. In the washing step (S1), the neutralization sediment is washed with a washing liquid until the pH of the post-washing liquid generated in the washing step becomes 6 or higher.
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公开(公告)号：US20230250508A1
公开(公告)日：2023-08-10
申请号：US18014551
申请日：2021-07-12
CPC分类号： C22B7/001 , H01M10/54 , B09B3/40 , C22B15/0056 , C22B23/02 , B09B2101/16
摘要： Provided is a method that allows for efficient removal of an impurity metal, and further, the recovery of a valuable metal with high efficiency. The method for recovering a valuable metal (Cu, Ni, and Co) includes the steps of: preparing a charge comprising at least a valuable metal as a raw material; heating and melting the raw material to form an alloy and a slag; and separating the slag to recover the alloy containing the valuable metal, wherein the heating and melting of the raw material comprises charging the raw material into a furnace of an electric furnace equipped with an electrode therein, and further melting the raw material by means of Joule heat generated by applying an electric current to the electrode, or heat generation of an arc itself, and thereby separating the raw material into a molten alloy and a molten slag present over the alloy.
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公开(公告)号：US20160340757A1
公开(公告)日：2016-11-24
申请号：US15115030
申请日：2015-01-21
发明人： Tatsuya Higaki , Yoshitomo Ozaki , Shin-ya Matsumoto , Itsumi Matsuoka , Hidemasa Nagai , Toshihiko Nagakura , Keiji Kudo
CPC分类号： C22B59/00 , C22B3/0005 , C22B3/08 , C22B3/42 , C22B3/44 , C22B21/0015 , C22B34/32 , Y02P10/234
摘要： In order to recover high-quality scandium from nickel oxide ores efficiently, this method comprises: a step (S1) for feeding Ni oxide ores and sulfuric acid into a pressure vessel, and subjecting the mixture to solid-liquid separation to form a leachate and a leach residue; a step (S2) for adding a neutralizing agent to the leachate, and thus forming a neutralization sediment and a post-neutralization fluid; a step (S3) for adding a sulfurizing agent to the post-neutralization fluid, and separating the obtained mixture into Ni sulfide and a post-sulfurization fluid; a step (S4) for bringing the post-sulfurization fluid into contact with a chelating resin, making Sc adsorbed on the chelating resin, and forming an Sc eluent; a step (S6) for bringing the Sc eluent into contact with an extracting agent, adding a back-extraction agent to the extract, and forming back-extracted matter; and a step (S8) for roasting the back-extracted matter, and forming Sc oxide.
摘要翻译： 为了有效地从氧化镍矿石中回收高质量的钪，该方法包括：将氧化镍矿石和硫酸进料到压力容器中的步骤（S1），并将混合物进行固液分离以形成渗滤液， 浸出渣 将中和剂添加到浸出液中的步骤（S2），从而形成中和沉淀物和后中和液; 步骤（S3），用于将硫化剂添加到后中和流体中，并将得到的混合物分离成硫化镍和硫化后的流体; 使后硫化流体与螯合树脂接触的步骤（S4），使Sc吸附在螯合树脂上，形成Sc洗脱液; 用于使Sc洗脱液与萃取剂接触的步骤（S6），向提取物中加入反萃取剂，形成反萃取物; 以及用于焙烧反萃取物质的步骤（S8），以及形成Sc氧化物。
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公开(公告)号：US09399804B2
公开(公告)日：2016-07-26
申请号：US14437767
申请日：2014-04-25
CPC分类号： C22B59/00 , C22B3/0005 , C22B3/08 , C22B3/22 , C22B3/42 , C22B3/44 , C22B23/043 , Y02P10/234
摘要： The present invention effectively recover high-grade scandium from nickel oxide ores. The present invention includes a leaching step (S1) for charging nickel oxide ores and sulfuric acid into a pressurized vessel, a neutralizing step (S2) for adding a neutralizing agent to the leachate to obtain a neutralized precipitate and a neutralized liquid, a sulfidizing step (S3) for adding a sulfidizing agent to the neutralized liquid, an ion exchange step (S4) for bringing the sulfidized solution into contact with a chelate resin, a solvent extraction step (S6) for bringing a Sc eluent into contact with an extracting agent, a Sc precipitation Step (S7) for adding a neutralizing agent or oxalic acid to a stripping solution, and a calcination step (S8) for drying and calcining a precipitate to obtain scandium oxide.
摘要翻译： 本发明有效地从氧化镍矿中回收高品位的钪。 本发明包括将镍氧化物矿石和硫酸装入加压容器的浸出步骤（S1），将中和剂添加到渗滤液中以获得中和的沉淀物和中和液体的中和步骤（S2），硫化步骤 （S3），用于向中和液中添加硫化剂，使硫化溶液与螯合树脂接触的离子交换步骤（S4），使Sc洗脱液与萃取剂接触的溶剂萃取工序（S6） ，用于将中和剂或草酸加入到汽提溶液中的Sc沉淀步骤（S7）和用于干燥和煅烧沉淀物以获得氧化钪的煅烧步骤（S8）。
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公开(公告)号：US20240318281A1
公开(公告)日：2024-09-26
申请号：US18575894
申请日：2022-03-25
发明人： Yu Yamashita , Toshihiko Nagakura , Tomoya Hagio
摘要： Provided is a method by which it is possible to collect valuable metals from raw material including waste lithium-ion batteries or the like. The present invention is a method which includes: a step for preparing raw material including at least Li, Al, and the valuable metals; a step for obtaining a reduction that includes slag and an alloy containing the valuable metals by subjecting the raw material to a reduction melting treatment; and a slag separation step for collecting the alloy by separating out the slag from the reduction, wherein, in a step for adding a flux containing calcium (Ca) to the raw material and performing reduction and melting thereof, the reduction melting treatment is performed such that the liquidus line temperature of ternary Al2O3—Li2O—CaO slag in a phase diagram is greater than the liquidus line temperature of a ternary Cu—Ni—Co alloy in a phase diagram.
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公开(公告)号：US11926883B2
公开(公告)日：2024-03-12
申请号：US18014200
申请日：2021-06-29
发明人： Yu Yamashita , Toshihiko Nagakura , Tomoya Hagio
CPC分类号： C22B7/001 , C22B1/005 , C22B15/0056 , C22B23/02 , H01M10/54
摘要： Provided is a method which allows for strict control of an oxygen partial pressure required for the heating and melting of a raw material, and thereby more efficient recovery of a valuable metal. The method for recovering a valuable metal (Cu, Ni, and Co) includes the steps of: preparing a charge comprising at least phosphorus (P) and a valuable metal as a raw material; heating and melting the raw material to form a molten body and then converting the molten body into a molten product comprising an alloy and a slag; and separating the slag from the molten product to recover the alloy comprising the valuable metal, wherein the heating and melting of the raw material comprises directly measuring an oxygen partial pressure in the molten body using an oxygen analyzer, and regulating the oxygen partial pressure based on the obtained measurement result.
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公开(公告)号：US09963762B2
公开(公告)日：2018-05-08
申请号：US15115030
申请日：2015-01-21
发明人： Tatsuya Higaki , Yoshitomo Ozaki , Shin-ya Matsumoto , Itsumi Matsuoka , Hidemasa Nagai , Toshihiko Nagakura , Keiji Kudo
CPC分类号： C22B59/00 , C22B3/0005 , C22B3/08 , C22B3/42 , C22B3/44 , C22B21/0015 , C22B34/32 , Y02P10/234
摘要： In order to recover high-quality scandium from nickel oxide ores efficiently, this method comprises: a step (S1) for feeding Ni oxide ores and sulfuric acid into a pressure vessel, and subjecting the mixture to solid-liquid separation to form a leachate and a leach residue; a step (S2) for adding a neutralizing agent to the leachate, and thus forming a neutralization sediment and a post-neutralization fluid; a step (S3) for adding a sulfurizing agent to the post-neutralization fluid, and separating the obtained mixture into Ni sulfide and a post-sulfurization fluid; a step (S4) for bringing the post-sulfurization fluid into contact with a chelating resin, making Sc adsorbed on the chelating resin, and forming an Sc eluent; a step (S6) for bringing the Sc eluent into contact with an extracting agent, adding a back-extraction agent to the extract, and forming back-extracted matter; and a step (S8) for roasting the back-extracted matter, and forming Sc oxide.
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