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    • 6. 发明授权
    • Method and apparatus for recovering valuable substance from lithium secondary battery
    • 从锂二次电池中回收有价物质的方法和装置
    • US08858677B2
    • 2014-10-14
    • US12084705
    • 2006-02-02
    • Toshiya KakutaSeiichiro Yamazaki
    • Toshiya KakutaSeiichiro Yamazaki
    • C22B26/12C22B1/00C25C3/02
    • H01M10/54C25C3/02C25C7/005H01M4/131H01M10/052Y02W30/84
    • A valuable-substance recovery method according to the present invention includes: a solvent peeling step (S3) of dissolving a resin binder included in an electrode material by immersing crushed pieces of a lithium secondary battery into a solvent, so as to peel off the electrode material containing valuable substances from a metal foil constituting the electrode; a filtering step (S4) of filtering a suspension of the solvent, so as to separate and recover the electrode material containing the valuable substances and a carbon material; a heat treatment step (S5) of heating the recovered electrode material containing the valuable substances and the carbon material, under an oxidative atmosphere, so as to burn and remove the carbon material; and a reducing reaction step (S6) of immersing the resultant electrode material containing the valuable substances into a molten salt of lithium chloride containing metal lithium, so as to perform a reducing reaction.
    • 根据本发明的有价值的物质回收方法包括:通过将锂二次电池的碎片浸入溶剂中来溶解包含在电极材料中的树脂粘合剂的溶剂剥离步骤(S3),以剥离电极 含有构成电极的金属箔的有价值物质的材料; 对溶剂的悬浮液进行过滤的过滤工序(S4),分离回收含有有价物质的电极材料和碳材料; 在氧化气氛下加热含有有价物质和碳材料的回收电极材料的热处理步骤(S5),以便燃烧和除去碳材料; 以及将含有有价物质的所得电极材料浸入含有金属锂的氯化锂的熔融盐中的还原反应步骤(S6),以进行还原反应。
    • 9. 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。
    • 10. 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。