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1. 发明授权

US10246759B2 Method of recovering rare-earth elements 有权
公开(公告)号：US10246759B2
公开(公告)日：2019-04-02
申请号：US14636722
申请日：2015-03-03
申请人： NIPPON LIGHT METAL COMPANY, LTD. , THE JAMAICA BAUXITE INSTITUTE LIMITED
发明人： Kaoru Sugita , Yasushi Kobayashi , Yoshihiro Taguchi , Wilmon Wallen-Bryan , Worrell Lyew You , Parris A Lyew-Ayee
IPC分类号： C22B59/00 , C22B7/00 , C22B3/44 , C22B3/38
摘要： Provided is a method of recovering rare-earth elements by performing slight pH adjustment of a leachate, which does not require such significant pH adjustment as in conventional methods, reduces cost and effort, and can efficiently recover rare-earth elements in a bauxite residue in a good yield. The method of recovering rare-earth elements is a method of recovering rare-earth elements, the method including: a leaching step of bringing a raw material bauxite residue, which is produced as a by-product in a Bayer process, into contact with a liquid leaching agent to recover a leachate containing rare-earth elements; an extraction step of bringing the leachate into contact with an extraction treatment liquid containing a phosphoric acid ester-based extractant to recover an extract liquid containing the rare-earth elements; and a back extraction step of bringing the extract liquid into contact with a back extraction treatment liquid to recover the rare-earth elements, the leaching step including recovering a leachate having a pH of 0.5 or more and 1.2 or less by using an acidic liquid leaching agent, the extraction step including adjusting the pH of the leachate to 1.0 or more and 1.7 or less and then bringing the leachate into contact with the extraction treatment liquid.

2. 发明授权

US10955740B2 Pellicle frame and pellicle 有权
公开(公告)号：US10955740B2
公开(公告)日：2021-03-23
申请号：US16316501
申请日：2017-06-30
申请人： NIPPON LIGHT METAL COMPANY, LTD. , Mitsui Chemicals, Inc.
发明人： Yoshihiro Taguchi , Kazuo Kohmura , Daiki Taneichi
IPC分类号： G03F1/64
摘要： The present invention provides; a pellicle frame which can effectively inhibit distortion of the photo mask (8) caused by mounting the pellicle (1), and which does not have a complex shape, and a pellicle which uses said pellicle frame are provided, and a manufacturing method of a blackened pellicle frame is also provided which can reduce the defect of the surface flickering under concentrated light and which facilitates inspection of the foreign matter adhesion prior to use. The present invention relates to a pellicle frame with an anodized film on a surface of an aluminum alloy frame, characterized in that: the aluminum alloy frame comprises an aluminum alloy which contains Ca: 5.0 to 10.0% by mass with the remainder aluminum and unavoidable impurities are contained, and has an area (volume) ratio of an Al4Ca phase, which is a dispersed phase, is greater than or equal to 25%, and a crystal structure of a part of the Al4Ca phase is monoclinic; wherein the Al4Ca phase dispersed in the anodized film is anodized, and the anodized film is stained with a black dye.

3. 发明授权

US09805876B2 Method for manufacturing electrode for aluminum electrolytic capacitor 有权
公开(公告)号：US09805876B2
公开(公告)日：2017-10-31
申请号：US14421748
申请日：2013-07-23
申请人： NIPPON LIGHT METAL COMPANY, LTD. , TOYO ALUMINIUM KABUSHIKI KAISHA
发明人： Masahiko Katano , Yuya Yoshida , Yoshihiro Taguchi , Asami Shirai , Yuta Shimizu , Toshifumi Taira , Masashi Mehata
IPC分类号： B05D5/12 , H01G9/045 , H01G9/052 , B05D1/18 , B05D3/02 , B05D5/00 , H01G9/00 , H01G9/04
CPC分类号： H01G9/045 , B05D1/18 , B05D3/0254 , B05D5/00 , H01G9/0029 , H01G9/052 , H01G9/0525 , H01G2009/0408
摘要： A porous aluminum electrode has a porous layer formed by sintering aluminum powder on the surface of an aluminum core. The porous aluminum electrode, when subjected to a formation to a voltage of 200V or more, is boiled and then subjected to a first forming process in which formation is performed in an aqueous solution of ammonium adipate at a temperature of 80° C. or below and a second forming process in which formation is performed in a boric acid aqueous solution. When heat depolarization is first carried out, washing with water is performed for five minutes or more before heat depolarization; therefore, the porous layer is not destroyed.

4. 发明申请

US20150221443A1 METHOD FOR MANUFACTURING ELECTRODE FOR ALUMINUM ELECTROLYTIC CAPACITOR 有权
标题翻译：铝电解电容器电极的制造方法
公开(公告)号：US20150221443A1
公开(公告)日：2015-08-06
申请号：US14421748
申请日：2013-07-23
申请人： NIPPON LIGHT METAL COMPANY, LTD. , TOYO ALUMINIUM KABUSHIKI KAISHA
发明人： Masahiko Katano , Yuya Yoshida , Yoshihiro Taguchi , Asami Shirai , Yuta Shimizu , Toshifumi Taira , Masashi Mehata
IPC分类号： H01G9/045 , H01G9/052 , B05D5/00 , B05D1/18 , B05D3/02
CPC分类号： H01G9/045 , B05D1/18 , B05D3/0254 , B05D5/00 , H01G9/0029 , H01G9/052 , H01G9/0525 , H01G2009/0408
摘要： A porous aluminum electrode has a porous layer formed by sintering aluminum powder on the surface of an aluminum core. The porous aluminum electrode, when subjected to a formation to a voltage of 200V or more, is boiled and then subjected to a first forming process in which formation is performed in an aqueous solution of ammonium adipate at a temperature of 80° C. or below and a second forming process in which formation is performed in a boric acid aqueous solution. When heat depolarization is first carried out, washing with water is performed for five minutes or more before heat depolarization; therefore, the porous layer is not destroyed.
摘要翻译：多孔铝电极具有通过在铝芯表面上烧结铝粉而形成的多孔层。将多孔铝电极当形成至200V以上的电压时，煮沸，然后进行第一次成型工艺，其中在80℃或更低的温度下在己二酸铵水溶液中进行形成以及在硼酸水溶液中进行成膜的第二形成工序。当首先进行热去极化时，在热去极化之前用水洗涤5分钟以上; 因此，多孔层不被破坏。

5. 发明授权

US10948816B2 Pellicle frame and pellicle 有权
公开(公告)号：US10948816B2
公开(公告)日：2021-03-16
申请号：US16316537
申请日：2017-06-30
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Yoshihiro Taguchi , Takayuki Yamaguchi , Jun Yu , Yasuo Ishiwata
IPC分类号： G03F1/64
摘要： The present invention provides a pellicle frame which can effectively inhibit deformation of an exposure master plate (8) caused by affixing the pellicle (1), and which does not have a complex shape, and a pellicle which uses said pellicle frame are provided. The pellicle frame with an anodized film on a surface of an aluminum alloy frame is characterized in that: the aluminum alloy frame comprises an aluminum alloy which contains Ca: 5.0 to 10.0% by weight with the remainder aluminum and unavoidable impurities are contained, and has an area (volume) ratio of an Al4Ca phase, which is a dispersed phase, is greater than or equal to 25%, and a crystal structure of a part of the Al4Ca phase is monoclinic; wherein the anodized film contains Al4Ca particles.

6. 发明授权

US09581897B2 Pellicle frame and process for producing same 有权
标题翻译：防护薄膜框架及其制造方法
公开(公告)号：US09581897B2
公开(公告)日：2017-02-28
申请号：US15026901
申请日：2013-10-23
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Takayuki Yamaguchi , Yoshihiro Taguchi
IPC分类号： G03F1/64
CPC分类号： G03F1/64
摘要： The present invention provides a pellicle frame that can prevent generation of haze and reduces a surface glittering defect under irradiation with collected light, and a method of manufacturing the pellicle frame. Specifically, provided are a pellicle frame, including: an aluminum frame material formed of aluminum or an aluminum alloy; and an anodic oxide film on a surface of the aluminum frame material, in which the anodic oxide film includes a film formed by using an alkaline anodic oxidation solution and a film formed by using an acid anodic oxidation solution, and a method of manufacturing the pellicle frame.
摘要翻译：本发明提供一种能够防止产生雾度并减少在收集的光照射下的表面闪光缺陷的防护薄膜框架，以及制造防护薄膜框架的方法。具体地，提供防护薄膜组件框架，其包括：由铝或铝合金形成的铝框架材料; 以及在铝框架材料的表面上的阳极氧化膜，其中阳极氧化膜包括通过使用碱性阳极氧化溶液形成的膜和使用酸性阳极氧化溶液形成的膜，以及制造防护薄膜组件的方法帧。

7. 发明申请

US20140308602A1 COLLECTOR PLATE FOR FUEL CELLS AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：燃料电池用收集板及其制造方法
公开(公告)号：US20140308602A1
公开(公告)日：2014-10-16
申请号：US14357788
申请日：2012-10-18
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Yosuke Nishikawa , Yoshiyuki Hatazawa , Yoshihiro Taguchi , Toshihiro Nakagawa , Atsushi Oota
IPC分类号： H01M8/02
CPC分类号： H01M8/0206 , C23C18/1651 , C23C18/36 , C23C18/44 , C23C18/54 , H01M8/0204 , H01M8/0208 , H01M8/0228 , Y02P70/56
摘要： Provided are a collector plate for a fuel cell, which has low contact resistance and excellent corrosion resistance, and can be reliably used for a long period of time, while exhibiting excellent cost performance, and a method of producing the collector plate for a fuel cell. A collector plate for a fuel cell (1), which is provided on both ends of a cell stack in which a plurality of fuel cell units are stacked and is used for collecting current, includes: an aluminum substrate (2) formed of aluminum or an aluminum alloy; and an Ni plating film (4); a noble metal plating film (5) including one or more noble metals selected from the group consisting of Pd, Pt, Ag, Rh, Ir, Os, and Ru; and an Au plating film (6), the films being formed on one surface of the aluminum substrate (2).
摘要翻译：提供一种燃料电池用集电板，其具有低接触电阻和优异的耐腐蚀性，并且可以长时间可靠地使用，同时具有优异的成本性能，以及制造燃料电池用集电板的方法。一种用于燃料电池（1）的集电板，其设置在多个燃料电池单元堆叠并用于集电的电池组的两端，包括：铝基板（2），由铝或铝合金; 和Ni镀膜（4）; 包含选自Pd，Pt，Ag，Rh，Ir，Os和Ru中的一种或多种贵金属的贵金属电镀膜（5）; 和Au镀膜（6），所述膜形成在铝基板（2）的一个表面上。

8. 发明申请

US20140283652A1 RARE EARTH ELEMENT RECOVERY METHOD 有权
标题翻译：稀土元素回收方法
公开(公告)号：US20140283652A1
公开(公告)日：2014-09-25
申请号：US14363676
申请日：2012-12-07
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Kaoru Sugita , Yuji Ota , Yoshihiro Taguchi , Satoshi Takeda
IPC分类号： C22B59/00
CPC分类号： C22B59/00 , B09B3/0016 , C22B3/0067 , C22B3/06 , C22B3/065 , C22B3/10 , Y02P10/234
摘要： Provided is a method of recovering rare-earth elements, including causing rare-earth elements particularly including Nd and Dy to leach efficiently from a raw material for leaching which contains the rare-earth elements, and separating and recovering the rare-earth elements. The method of recovering rare-earth elements includes: a leaching step including performing leaching treatment of rare-earth elements in which an acidic slurry of a raw material for leaching which contains the rare-earth elements is held under a predetermined condition, and then subjecting the slurry obtained after the leaching treatment to solid-liquid separation, yielding a leachate containing the rare-earth elements; and a separation step of separating and recovering the rare-earth elements from the yielded leachate, in which: the raw material for leaching contains Ca as CaO at a ratio of 4 to 15 mass % and Ti as TiO2 at a ratio of 2 to 13 mass % in a solid component (S); an acid aqueous solution is an acid aqueous solution of hydrochloric acid and/or nitric acid; and the leaching treatment performed in the leaching step is digestion or maceration which is performed under the heating and pressurizing conditions of a temperature of 160 to 300° C. and a pressure of 0.65 to 10 MPa, and the rare-earth elements are caused to leach together with Ca in the leaching step.
摘要翻译：提供一种回收稀土元素的方法，包括使特别包括Nd和Dy的稀土元素从含有稀土元素的浸出原料中有效地浸出，并分离和回收稀土元素。回收稀土元素的方法包括：浸出步骤，包括进行稀土元素的浸出处理，其中将含有稀土元素的浸出原料的酸性浆料保持在预定条件下，然后在浸出处理后获得的浆液进行固液分离，产生含有稀土元素的渗滤液; 以及从所得到的浸出液中分离回收稀土元素的分离工序，其中：浸出原料中含有Ca为CaO，比例为4〜15质量％，Ti为TiO 2，比例为2〜13 固体组分（S）中的质量％; 酸性水溶液是盐酸和/或硝酸的酸性水溶液; 并且在浸出步骤中进行的浸出处理是在160〜300℃的温度和0.65〜10MPa的加热加压条件下进行的消化或浸渍，并且使稀土元素在浸出步骤中与Ca一起浸出。

9. 发明授权

US11248281B2 Aluminum member and method for producing same 有权
公开(公告)号：US11248281B2
公开(公告)日：2022-02-15
申请号：US16642145
申请日：2018-08-02
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Yusuke Seki , Yoshihiro Taguchi
IPC分类号： C25D11/04 , C25D11/16 , C25D11/18 , C22C21/08 , B24C1/08 , C25D11/08 , C25D11/10
摘要： An aluminum member includes: a substrate formed of aluminum or an aluminum alloy that contains 0 to 10% by mass of magnesium, 0.1% by mass or less of iron, and 0.1% by mass or less of silicon and a balance of which is aluminum and unavoidable impurities; and an anodic oxide coating formed on a surface of the substrate. A surface of the substrate on the anodic oxide coating side has an arithmetical mean height Sa of 0.1 to 0.5 μm, a maximum height Sz of 0.2 to 5 μm, and an mean width of roughness profile elements Rsm of 0.5 to 10 μm, where the arithmetical mean height Sa, the maximum height Sz, and the mean width of roughness profile elements Rsm are measured after the anodic oxide coating is removed.

10. 发明申请

US20150086449A1 METHOD OF RECOVERING RARE-EARTH ELEMENTS 有权
标题翻译：恢复稀土元素的方法
公开(公告)号：US20150086449A1
公开(公告)日：2015-03-26
申请号：US14389304
申请日：2012-12-07
申请人： NIPPON LIGHT METAL COMPANY, LTD.
发明人： Kaoru Sugita , Yasushi Kobayashi , Yoshihiro Taguchi , Satoshi Takeda , Yuji Ota , Masashi Ojiri , Kazuhiro Oda , Hiroshi Sano
IPC分类号： C22B59/00
CPC分类号： C22B59/00 , B09B3/00 , C01F17/00 , C01F17/0006 , C22B3/0005 , C22B3/04 , C22B3/20 , C22B3/44 , C22B7/00 , C22B7/007 , Y02P10/234 , Y02W30/54
摘要： Provided is a method of recovering rare-earth elements by which rare-earth elements can be recovered efficiently from a bauxite residue serving as a raw material and containing the rare-earth elements. Specifically provided is a method of recovering rare-earth elements from a raw material, the raw material being a bauxite residue produced as a by-product in a Bayer process, the method including: using a bauxite residue having a specific surface area of 35 m2/g or more; adding, to the raw material bauxite residue, a liquid leaching agent formed of an aqueous solution of at least one kind of mineral acid selected from sulfuric acid, hydrochloric acid, nitric acid, and sulfurous acid, thereby preparing a slurry having a liquid-solid ratio of 2 to 30 and a pH of 0.5 to 2.2; subjecting the slurry to leaching treatment of the rare-earth elements under a temperature condition of room temperature to 160° C.; subjecting the slurry after the leaching treatment to solid-liquid separation, yielding a leachate; and separating and recovering the rare-earth elements from the leachate.
摘要翻译：提供一种回收稀土元素的方法，通过稀土元素可以从用作原料的铝土矿残渣中有效地回收并含有稀土元素。具体提供的是从原料中回收稀土元素的方法，原料是在拜耳法中作为副产物生产的铝土矿残渣，该方法包括：使用比表面积为35m 2的铝土矿残渣 / g以上; 向原料铝土矿残渣中添加由选自硫酸，盐酸，硝酸和亚硫酸中的至少一种无机酸的水溶液形成的液体浸出剂，由此制备具有液固的浆料比例为2至30，pH为0.5至2.2; 使该浆液在室温至160℃的温度条件下浸出处理稀土元素; 在浸出处理后对浆料进行固液分离，得到渗滤液; 并从渗滤液中分离回收稀土元素。

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