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公开(公告)号：US20140166501A1
公开(公告)日：2014-06-19
申请号：US14236949
申请日：2012-08-08
申请人： Tomoyuki Awazu , Takayasu Sugihara , Masatoshi Majima , Toshiyuki Nohira , Rika Hagiwara , Seitaro Kobayashi
发明人： Tomoyuki Awazu , Takayasu Sugihara , Masatoshi Majima , Toshiyuki Nohira , Rika Hagiwara , Seitaro Kobayashi
IPC分类号： C25C3/34
摘要： An element recovery method and an element recovery apparatus are provided by which an element containing a high-purity rare earth element can be recovered at low cost. The element recovery method includes the steps of: preparing molten salt containing a rare earth element; and controlling electric potentials in a pair of electrode members at prescribed values while keeping the pair of electrode members in contact with the molten salt, thereby depositing the rare earth element existing in the molten salt on one of the pair of electrode members. In this way, as compared with the conventional wet separation method, an element such as a rare earth element that is to be recovered can be directly recovered from the molten salt in which the element is dissolved, so that the steps of the recovery method can be simplified and reduced in cost.
摘要翻译： 提供元素回收方法和元素回收装置，通过该装置可以以低成本回收含有高纯度稀土元素的元素。 元素回收方法包括以下步骤：制备含有稀土元素的熔盐; 并且在保持一对电极构件与熔融盐接触的同时，将规定值的一对电极构件的电位进行控制，由此将存在于熔融盐中的稀土元素沉积在该对电极构件之一上。 以这种方式，与以往的湿式分离方法相比，可以从元素溶解的熔融盐中直接回收待回收的稀土元素等元素，使回收方法的工序可以 简化并降低成本。
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公开(公告)号：US10309022B2
公开(公告)日：2019-06-04
申请号：US14236949
申请日：2012-08-08
申请人： Tomoyuki Awazu , Takayasu Sugihara , Masatoshi Majima , Toshiyuki Nohira , Rika Hagiwara , Seitaro Kobayashi
发明人： Tomoyuki Awazu , Takayasu Sugihara , Masatoshi Majima , Toshiyuki Nohira , Rika Hagiwara , Seitaro Kobayashi
摘要： An element recovery method and an element recovery apparatus are provided by which an element containing a high-purity rare earth element can be recovered at low cost. The element recovery method includes the steps of: preparing molten salt containing a rare earth element; and controlling electric potentials in a pair of electrode members at prescribed values while keeping the pair of electrode members in contact with the molten salt, thereby depositing the rare earth element existing in the molten salt on one of the pair of electrode members. In this way, as compared with the conventional wet separation method, an element such as a rare earth element that is to be recovered can be directly recovered from the molten salt in which the element is dissolved, so that the steps of the recovery method can be simplified and reduced in cost.
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公开(公告)号：US20140170458A1
公开(公告)日：2014-06-19
申请号：US13989223
申请日：2011-11-07
申请人： Koji Nitta , Shinji Inazawa , Masatoshi Majima , Atsushi Yamaguchi , Shoichiro Sakai , Atsushi Fukunaga , Rika Hagiwara , Toshiyuki Nohira , Kazuhiko Matsumoto
发明人： Koji Nitta , Shinji Inazawa , Masatoshi Majima , Atsushi Yamaguchi , Shoichiro Sakai , Atsushi Fukunaga , Rika Hagiwara , Toshiyuki Nohira , Kazuhiko Matsumoto
IPC分类号： H01M10/39
CPC分类号： H01M10/399 , H01M2300/0048
摘要： A separator (3) of a molten salt battery is impregnated with a molten salt that serves as the electrolyte. The molten salt contains, as cations, at least one kind of ions selected from among quaternary ammonium ions, imidazolium ions, imidazolinium ions, pyridinium ions, pyrrolidinium ions, piperidinium ions, morpholinium ions, phosphonium ions, piperazinium ions and sulfonium ions in addition to sodium ions. These cations do not have adverse effects on a positive electrode (1). In addition, the melting point of the molten salt, which contains sodium ions and the above-mentioned cations, is significantly lower than the operating temperature of sodium-sulfur batteries, said operating temperature being 280-360 DEG C. Consequently, the molten salt battery is capable of operating at lower temperatures than sodium-sulfur batteries.
摘要翻译： 熔融盐电池的分离器（3）浸渍有用作电解质的熔融盐。 作为阳离子，熔融盐除了季铵离子，咪唑鎓离子，咪唑啉鎓离子，吡啶鎓离子，吡咯烷鎓离子，哌啶鎓离子，吗啉鎓离子，鏻离子，哌嗪鎓离子和锍离子中外还含有至少一种离子 钠离子。 这些阳离子对正极没有不利影响（1）。 此外，含有钠离子和上述阳离子的熔融盐的熔点显着低于钠硫电池的工作温度，所述操作温度为280-360℃。因此，熔融盐 电池能够在低于钠硫电池的温度下工作。
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公开(公告)号：US20090101514A1
公开(公告)日：2009-04-23
申请号：US11991501
申请日：2006-09-05
申请人： Toshiyuki Nohira , Rika Hagiwara , Jun Shimano
发明人： Toshiyuki Nohira , Rika Hagiwara , Jun Shimano
IPC分类号： C25D3/66 , C07D207/06
摘要： An objective of the present invention is to provide an electrodeposition method for metals using a molten salt, which easily enables the electrodeposition of various types of metals such as refractory metals and rare earth metals. In order to solve this problem, the invention is characterized in that it is effected at the electrodeposition temperature in a range of from 100° C. to 200° C. using a molten salt of quaternary ammonium halide represented by the general formula (I) below (wherein, in the formula, R1, R2, R3, and R4, which may be the same or different from each other and may have a substituent, each represents an alkyl group having 1 to 12 carbon atoms or a cycloalkyl group having 5 to 7 carbon atoms; and X− represents a halide anion which is a counter-ion of quaternary ammonium cation) and/or a molten salt of pyrrolidinium halide represented by the general formula (II) below (wherein, in the formula, R5 and R6, which may be the same or different from each other and may have a substituent, each represents an alkyl group having 1 to 12 carbon atoms or a cycloalkyl group having 5 to 7 carbon atoms; and X− represents a halide anion which is a counter-ion of pyrrolidinium cation). [Chemical 1] R1R2R3R4N+X− (I)
摘要翻译： 本发明的目的是提供一种使用熔融盐的金属的电沉积方法，其容易实现难熔金属和稀土金属等各种金属的电沉积。 为了解决这个问题，本发明的特征在于，使用由通式（I）表示的季铵盐的熔融盐，在电沉积温度为100℃〜200℃的范围内进行， （式中，R 1，R 2，R 3和R 4可以相同或不同，可以具有取代基，各自表示碳原子数1〜12的烷基或具有5个碳原子的环烷基 至7个碳原子; X表示作为季铵阳离子的抗衡离子的卤化物阴离子）和/或由下述通式（II）表示的吡咯烷鎓卤化物的熔融盐（其中，在式中，R5和 R 6可以相同或不同，可以具有取代基，各自表示碳原子数1〜12的烷基或碳原子数5〜7的环烷基，X表示卤素阴离子， 吡咯烷鎓阳离子的抗衡离子）。 <？in-line-formula description =“In-line formula”end =“lead”？> [Chemical 1] <？in-line-formula description =“In-line formula”end =“tail”？> in-line-formula description =“In-line Formulas”end =“lead”？> R1R2R3R4N + X-（I）<？in-line-formula description =“In-line Formulas”end =“tail”？>
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公开(公告)号：US08257868B2
公开(公告)日：2012-09-04
申请号：US11886781
申请日：2006-03-22
IPC分类号： H01M4/13 , H01M6/18 , H01M10/0562 , C07C303/00 , C07C307/00 , C07C309/00 , C07C311/00 , H01M6/14
CPC分类号： C25D3/66 , C07C311/48 , H01B1/06 , H01M10/0568
摘要： A molten salt composition is disclosed containing two or more types of molten salt MTFSI whose anion is an imide anion TFSI and whose cation is an alkali metal M exhibits a lower electrolyte melting point and a wider operating temperature range than a simple salt does. This brings about various advantages such as a wider range of materials that are chosen for use in batteries and the like.
摘要翻译： 公开了含有阴离子为酰亚胺阴离子TFSI并且其阳离子为碱金属M的两种或更多种熔融盐MTFSI的熔融盐组合物，其表现出比简单盐更低的电解质熔点和更宽的工作温度范围。 这带来了各种优点，例如选择用于电池等的更宽范围的材料。
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公开(公告)号：US20090212743A1
公开(公告)日：2009-08-27
申请号：US11886781
申请日：2006-03-22
CPC分类号： C25D3/66 , C07C311/48 , H01B1/06 , H01M10/0568
摘要： A molten salt composition is disclosed containing two or more types of molten salt MTFSI whose anion is an imide anion TFSI and whose cation is an alkali metal M exhibits a lower electrolyte melting point and a wider operating temperature range than a simple salt does. This brings about various advantages such as a wider range of materials that are chosen for use in batteries and the like.
摘要翻译： 公开了含有阴离子为酰亚胺阴离子TFSI并且其阳离子为碱金属M的两种或更多种熔融盐MTFSI的熔融盐组合物，其表现出比简单盐更低的电解质熔点和更宽的工作温度范围。 这带来了各种优点，例如选择用于电池等的更宽范围的材料。
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公开(公告)号：US20110286911A1
公开(公告)日：2011-11-24
申请号：US13131703
申请日：2009-11-25
申请人： Rika Hagiwara , Kazuhiko Matsumoto
发明人： Rika Hagiwara , Kazuhiko Matsumoto
IPC分类号： C01B7/19
CPC分类号： C01B7/195
摘要： To provide a novel method for purifying hydrogen fluoride, capable of efficiently reducing the content of arsenic in hydrogen fluoride.The step (a) of bringing a crude hydrogen fluoride containing arsenic trifluoride into contact with an oxidizing agent of a metal fluoride in a liquid state is carried out, for example, in a reactor (11) to obtain a reaction mixture wherein arsenic pentafluoride is formed by oxidizing arsenic trifluoride with the oxidizing agent of the metal fluoride through a liquid-liquid reaction; and the step (b) of separating purified hydrogen fluoride from the reaction mixture is carried out, for example, by a separator (13), the thus obtained purified hydrogen fluoride having a lower content of arsenic than that of the crude hydrogen fluoride.
摘要翻译： 提供一种能够有效降低氟化氢中砷含量的氟化氢的纯化方法。 将含有三氟化砷的粗制氟化氢与液态金属氟化物的氧化剂接触的工序（a）例如在反应器（11）中进行，得到五氟化砷为 通过液 - 液反应用金属氟化物的氧化剂氧化三氟化砷而形成; 从反应混合物中分离纯化氟化氢的步骤（b）例如通过隔板（13）进行，由此获得的砷的含量低于粗的氟化氢的纯化氟化氢。
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公开(公告)号：US09260306B2
公开(公告)日：2016-02-16
申请号：US13131703
申请日：2009-11-25
申请人： Rika Hagiwara , Kazuhiko Matsumoto
发明人： Rika Hagiwara , Kazuhiko Matsumoto
IPC分类号： C01B7/19
CPC分类号： C01B7/195
摘要： A novel method for purifying hydrogen fluoride, capable of efficiently reducing the content of arsenic in hydrogen fluoride. The method includes the steps of (a) bringing a crude hydrogen fluoride containing arsenic trifluoride into contact with an oxidizing agent of a metal fluoride in a liquid state in a reactor to obtain a reaction mixture, wherein arsenic pentafluoride is formed by oxidizing arsenic trifluoride with the oxidizing agent of the metal fluoride through a liquid-liquid reaction; and (b) separating purified hydrogen fluoride from the reaction mixture by a separator, the thus obtained purified hydrogen fluoride having a lower content of arsenic than that of the crude hydrogen fluoride.
摘要翻译： 一种能够有效降低氟化氢中砷含量的氟化氢净化方法。 该方法包括以下步骤：（a）在反应器中使含有三氟化砷的粗制氟化氢与液态金属氟化物的氧化剂接触，得到反应混合物，其中通过将三氟化砷与 金属氟化物的氧化剂通过液 - 液反应; 和（b）通过隔膜从反应混合物中分离纯化的氟化氢，由此获得的砷含量低于粗制氟化氢的纯化氟化氢。
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公开(公告)号：US4753786A
公开(公告)日：1988-06-28
申请号：US10372
申请日：1987-02-03
CPC分类号： H01M4/583 , C01B31/005 , H01M4/5835 , H01M6/16
摘要： There is disclosed a method for producing a graphite fluoride for use in an electrochemical cell of the type having as the negative electrode a light metal, such as an alkali metal, an electrolyte in which the negative electrode is not dissolved, and a positive electrode which has, as an active material, a graphite fluoride produced by fluorinating a decomposition residual carbon which has been obtained by decomposing a covalent intercalation compound. The electrochemical cell of the present invention exhibits high discharge potential and low overvoltage, and excellent discharge characteristics with respect to the flatness of discharge voltage, discharge capacity and shelf-life.
摘要翻译： 公开了一种用于电化学电池中用作电池的方法，所述电化学电池具有作为负极的诸如碱金属的轻金属，不溶解负极的电解质的正极和 作为活性物质，通过氟化通过分解共价插层化合物而获得的分解残余碳产生的氟化石墨。 本发明的电化学电池显示出高的放电电位和低的过电压，以及放电电压，放电容量和保质期的平坦度方面的优异的放电特性。
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