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    • 2. 发明申请
    • Method for electrolyzing molten salt, electrolytic cell, and process for producing ti using said method
    • 使用所述方法电解熔融盐,电解池和制造方法的方法
    • US20090152122A1
    • 2009-06-18
    • US11991072
    • 2006-08-22
    • Tadashi OgasawaraMakoto YamaguchiToru UenishiMasahiko HoriKazuo TakemuraKatsunori Dakeshita
    • Tadashi OgasawaraMakoto YamaguchiToru UenishiMasahiko HoriKazuo TakemuraKatsunori Dakeshita
    • C25B1/26C25B9/00C25C3/28
    • C22B34/129C22B5/04C22B34/1268C25C3/02C25C7/005
    • The present invention provides a method for electrolyzing molten salt that can enhance the concentration of metal-fog forming metal in the molten salt by carrying out the electrolysis under conditions that the molten salt containing the chloride of metal-fog forming metal is supplied from one end of an electrolytic cell to a space between an anode and a cathode in a continuous or intermittent manner to provide a flow rate in one direction to the molten salt in the vicinity of the surface of the cathode and thus to allow the molten salt to flow in one direction in the vicinity of the surface of the cathode. According to the present invention, while high current efficiency is maintained, only the molten salt enriched with metal-fog forming metal such as Ca can be effectively taken out. Further, this method can easily be carried out by using the electrolytic cell according to the present invention. Furthermore, the application of the method for electrolyzing molten salt according to the present invention to the production of Ti by Ca reduction can realize the production of metallic Ti with high efficiency. Thus, the method for electrolyzing molten salt, the electrolytic cell, and the process for producing Ti, each according to the present invention, can be effectively utilized in the production of Ti by Ca reduction.
    • 本发明提供了一种电解熔融盐的方法,该方法可以通过在从一端供给含有金属雾形成金属的氯化物的熔融盐的条件下进行电解,从而提高熔融盐中金属雾形成金属的浓度 的电解池以连续或间歇的方式连接到阳极和阴极之间的空间,以在阴极表面附近向熔融盐提供沿一个方向的流速,从而允许熔融盐流入 在阴极表面附近的一个方向。 根据本发明,在保持高电流效率的同时,仅有效地除去富含金属雾形成金属如Ca的熔盐。 此外,该方法可以通过使用根据本发明的电解槽容易地进行。 另外,通过将本发明的熔盐电解方法应用于通过Ca还原生产Ti,可以实现高效率地生产金属Ti。 因此,根据本发明的电解熔融盐,电解槽和制造Ti的方法的方法可以有效地用于通过Ca还原生产Ti。
    • 3. 发明申请
    • Method for producing ti or ti alloy through reduction by ca (as amended)
    • 通过ca还原制备钛或钛合金的方法(经修改)
    • US20070181435A1
    • 2007-08-09
    • US10589949
    • 2005-02-01
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru UenishiKatsunori Dakeshita
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru UenishiKatsunori Dakeshita
    • C25C3/28
    • C25C3/28C22B5/04C22B34/1268C22B34/129
    • The method by the invention in which a molten salt is held in a reactor cell 1 to perform electrolysis in the molten salt of the reactor cell, the molten salt containing CaCl2 while Ca being dissolved in the molten salt, and Ti or Ti alloys are generated in the molten salt by supplying a metallic chloride containing TiCl4 into the molten salt such that the metallic chloride containing TiCl4 is caused to react with Ca generated on a cathode electrode side by the electrolysis, makes it possible to produce the high-purity Ti metals or Ti alloy. Furthermore, the reactor cell 1 includes a membrane 4 which partitions an inside of the reactor cell into a side of an anode electrode 2 and a side of a cathode electrode 3, and the membrane 4 blocks the movement of Ca generated on the cathode electrode side in the reactor cell toward the anode electrode side while permitting the molten salt to flow in the reactor cell, which allows a back reaction by Ca to be effectively suppressed. When an electroconductive porous material is used as a cathode electrode, productivity can further be improved.
    • 本发明的方法,其中将熔融盐保持在反应器电池1中以在反应器电池的熔融盐中进行电解,所述熔融盐含有CaCl 2,同时Ca溶解在熔融盐中 ,并且在熔融盐中产生Ti或Ti合金,通过向熔融盐中加入含有TiCl 4的金属氯化物,使含有TiCl 4的金属氯化物反应 通过电解在阴极电极侧产生的Ca,可以生产高纯Ti金属或Ti合金。 此外,反应器电池1包括将反应器单元的内部分隔成阳极电极2和阴极电极3的一侧的膜4,并且膜4阻挡在阴极电极侧产生的Ca的移动 在反应器电池中朝向阳极电极侧,同时允许熔融盐在反应器电池中流动,这允许有效地抑制Ca的反向反应。 当使用导电多孔材料作为阴极时,可进一步提高生产率。
    • 5. 发明申请
    • Method for producing ti or ti alloy through reduction by ca
    • 通过还原制备钛或钛合金的方法
    • US20070187255A1
    • 2007-08-16
    • US10589879
    • 2005-02-16
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru UenishiKatsunori Dakeshita
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru UenishiKatsunori Dakeshita
    • C25C3/28
    • C22B34/1272C22B34/129C25C5/04
    • The invention is a method for producing Ti or Ti alloys through reduction of TiCl4 by Ca, which can produce high-purity Ti metals or Ti alloys. A molten salt containing CaCl2 and having Ca dissolved therein is held in a reactor cell, electrolysis is performed in the molten salt in the reactor cell, and particulate Ti or Ti alloys are generated in the molten salt by supplying a metallic chloride containing TiCl4 to the molten salt so as to react with Ca generated on a cathode electrode side by the electrolysis, allowing enhancement of a feed rate of TiCl4 as a raw material of Ti, and also a continuous operation. Further, the method by the invention eliminates the need of the separate handling of Ca, because a reducing reaction and an electrolytic reaction can simultaneously proceed in the reactor cell to replenish Ca, consumed in the reducing reaction, by the electrolytic reaction. Accordingly, the production method by the invention can be used as means for efficiently and economically producing high-purity Ti metals or Ti alloys.
    • 本发明是通过Ca还原TiCl 4制备Ti或Ti合金的方法,其可以生产高纯Ti金属或Ti合金。 将含有CaCl 2 Ca的Ca盐溶解在其中的熔融盐保持在反应器电池中,在反应器电池中的熔融盐中进行电解,并且在熔融盐中产生颗粒状的Ti或Ti合金, 将含有TiCl 4的金属氯化物供给熔融盐,以便通过电解与在阴极电极侧产生的Ca反应,从而提高TiCl 4的进料速率, 作为Ti的原料,也是连续操作。 此外,本发明的方法消除了对Ca的单独处理的需要,因为还原反应和电解反应可以在反应器电池中同时进行以补充通过电解反应在还原反应中消耗的Ca。 因此,本发明的制造方法可以用作高效且经济地制造高纯度Ti金属或Ti合金的手段。
    • 6. 发明申请
    • Process for Producing Ti and Apparatus Therefor
    • 生产钛的方法及其设备
    • US20100089204A1
    • 2010-04-15
    • US11992162
    • 2006-08-22
    • Tadashi OgasawaraMakoto YamaguchiToru UenishiMasahiko HoriKazuo TakemuraKatsunori Dakeshita
    • Tadashi OgasawaraMakoto YamaguchiToru UenishiMasahiko HoriKazuo TakemuraKatsunori Dakeshita
    • C22B34/12
    • C25C3/28C22B34/1272C22B34/129C22B34/1295C25C3/02C25C7/005C25C7/06
    • A process for producing Ti, comprising a reduction step of reacting TiCl4 with Ca in a CaCl2-containing molten salt having the Ca dissolved therein to thereby form Ti particles, a separation step of separating the Ti particles formed in said molten salt from said molten salt and an electrolysis step of electrolyzing the molten salt so as to increase the Ca concentration, wherein the molten salt increased in Ca concentration in the electrolysis step is introduced into a regulating cell to thereby render the Ca concentration of the molten salt constant and thereafter the molten salt is used for the reduction of TiCl4 in the reduction step. In the present invention, the Ca concentration of the molten salt to be fed to the corresponding reduction vessel can be inhibited from fluctuating and, at the same time, can maintain high concentration levels. Further, a large volume of the molten salt can be treated continuously. Therefore, the reduction reaction of TiCl4 can be efficiently performed, and the process can be effectively utilized in the production of Ti by Ca reduction as a production process for realizing Ti production on an industrial scale.
    • 一种制备Ti的方法,包括在溶解有Ca的含CaCl 2的熔融盐中使TiCl4与Ca反应从而形成Ti颗粒的还原步骤,将在所述熔融盐中形成的Ti颗粒与所述熔融盐分离的分离步骤 以及电解电解步骤,电解所述熔融盐以增加所述Ca浓度,其中将所述电解步骤中的Ca浓度升高的所述熔融盐引入调节池中,从而使所述熔融盐的Ca浓度恒定, 盐在还原步骤中用于还原TiCl4。 在本发明中,可以抑制供给到相应的还原容器的熔融盐的Ca浓度的波动,同时可以保持高浓度水平。 此外,可以连续地处理大量的熔融盐。 因此,可以有效地进行TiCl 4的还原反应,并且通过Ca还原可以有效地利用Ti的制造,作为实现工业规模的Ti生产的制造方法。
    • 7. 发明申请
    • Method For Producing Metal
    • 生产金属的方法
    • US20080110765A1
    • 2008-05-15
    • US11792954
    • 2005-12-09
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru Uenishi
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru Uenishi
    • C25C3/02C25C1/22
    • C25C5/04C25B1/26C25C3/02C25C3/34C25C7/04
    • A method for producing a metal by an electrolytic process using an yttria-containing porous ceramic body as a diaphragm is provided; the calcium formed by electrolysis cannot pass through the diaphragm, hence the back reaction can be effectively inhibited. Preferably, to be used is a diaphragm comprising a porous ceramic body having a purity of yttrium of 90 mass % or more (more preferably, 99% or more), a porosity of 1% or more and a pore diameter of 20 μm or less, and having a thickness of 0.05-50 mm and a metal halide is used as the electrolytic bath. The method can be utilized for producing metals such as calcium or rare earth elements, in particular. For example, when the method is applied to the production of calcium, metallic calcium can be produced with ease and at low cost without the need for enormous heat energy.
    • 提供了使用含有氧化钇的多孔陶瓷体作为隔膜的电解法制造金属的方法。 通过电解形成的钙不能通过隔膜,因此可以有效地抑制背部反应。 优选使用的是具有钇的纯度为90质量%以上(更优选为99%以上),孔隙率为1%以上,孔径为20μm以下的多孔陶瓷体的隔膜 ,并且具有0.05-50mm的厚度,并且使用金属卤化物作为电解浴。 该方法特别可用于生产诸如钙或稀土元素的金属。 例如,当将该方法应用于钙的生产时,可以容易且低成本地生产金属钙,而不需要巨大的热能。
    • 10. 发明申请
    • Method for producing ti or ti alloy through reduction by ca
    • 通过还原制备钛或钛合金的方法
    • US20070131057A1
    • 2007-06-14
    • US10575224
    • 2004-10-06
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru UenishiYuko UrasakiKazuo Takemura
    • Tadashi OgasawaraMakoto YamaguchiMasahiko HoriToru UenishiYuko UrasakiKazuo Takemura
    • B22F9/24
    • C25C3/28C22B34/1272C22B34/1295C25C3/02
    • A method for producing Ti or Ti alloys through reduction by Ca, including: a reduction step of holding a molten salt, containing CaCl2 and having Ca dissolved therein, in a reactor vessel 1, and reacting a metallic chloride containing TiCl4 with Ca in said salt to generate particles of Ti or Ti alloys in said salt; and a separation step of separating particles of Ti or Ti alloys, generated in said salt, from said salt. An electrolysis step 8, in which CaCl2 discharged outside the reactor vessel 1 is electrolyzed into Ca and Cl2, and the generated Ca is used for the generation reaction of Ti or Ti alloys in the reactor vessel 1, is preferably added. In the electrolysis step 8, an alloy electrode made of a molten Ca alloy, if applied for a cathode, is effective in enhancing the electricity efficiency, and also can be effectively utilized as a carrier medium of Ca for raising a Ca concentration of molten salt. By this method, high-purity Ti metals can be efficiently and economically produced.
    • 一种通过Ca还原制造Ti或Ti合金的方法,包括:将含有CaCl 2·Ca和Ca的溶解在其中的熔融盐保持在反应容器1中的还原步骤,并使金属 在所述盐中含有TiCl 4 Si与Ca的氯化物,以在所述盐中产生Ti或Ti合金颗粒; 以及分离步骤,从所述盐分离在所述盐中产生的Ti或Ti合金的颗粒。 电解步骤8,其中排放到反应容器1外部的CaCl 2电解为Ca和Cl 2,并且所产生的Ca用于Ti或 优选添加反应器容器1中的Ti合金。 在电解工序8中,如果用于阴极,则由熔融的Ca合金构成的合金电极,对于提高电效率是有效的,也可以有效地利用Ca作为提高熔融盐的Ca浓度的载体介质 。 通过这种方法,可以高效且经济地生产高纯度Ti金属。