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    • 43. 发明专利
    • Method of recycling cemented carbide and device used in the method
    • 回收碳化硅的方法和方法中使用的装置
    • JP2013019019A
    • 2013-01-31
    • JP2011152920
    • 2011-07-11
    • Toyota Motor Corpトヨタ自動車株式会社Sanalloy Industry Co Ltdサンアロイ工業株式会社
    • ISHIKAWA HIROSHIIKEBE MASAAKIYANAGIDA HIDEFUMI
    • C22B7/00B09B3/00C22B9/02C22B23/02
    • Y02P10/224Y02P10/232Y02P10/234
    • PROBLEM TO BE SOLVED: To achieve a suitable recycling in a method of recycling cemented carbide with a high Co content using Zn decomposition method by suitably melting and diffusing melted Zn into Co and improving a recovery rate of the cemented carbide.SOLUTION: When melting and diffusing cemented carbide granules containing WC as a principal component and Co as a binder component into the melted Zn, the cemented carbide granules are made easier to be infiltrated into the melted Zn by pressurizing the melted Zn housed in a crucible at a temperature at which Co and Zn change into a liquid phase under a Co-Zn constitutional diagram, and the melted Zn in the crucible is convected so as to be suitably melted and diffused into the cemented carbide granules by moving up and down or vibrating by falling the melted Zn. As a result, compared with conventional methods, more melted Zn is melted and diffused into Co and the recovery rate of the cemented carbide granules improves, thereby enabling the suitable recycling.
    • 要解决的问题为了通过适当地熔化并将熔融的Zn扩散到Co中并提高硬质合金的回收率,通过使用Zn分解方法回收具有高Co含量的硬质合金的方法来实现合适的再循环。 解决方案:当熔融和扩散含有WC作为主要成分的硬质合金颗粒和作为粘合剂成分的Co作为熔融的Zn时,使硬质合金颗粒更容易渗入熔融的锌中, 在Co-Zn结构图下Co和Zn变成液相的温度下的坩埚,将坩埚中的熔融Zn对流,适当地熔融并通过上下移动而扩散到硬质合金颗粒中 或通过使熔融的锌落下来振动。 结果,与常规方法相比,更多的熔融的Zn熔化并扩散到Co中,并且改善了硬质合金颗粒的回收率,从而能够进行适当的再循环。 版权所有(C)2013,JPO&INPIT
    • 44. 发明专利
    • Method for recovering manganese alloy from manganese oxide waste
    • 从锰矿废料中回收锰合金的方法
    • JP2012193424A
    • 2012-10-11
    • JP2011058966
    • 2011-03-17
    • Shinkoo Flex:Kk株式会社シンコーフレックス
    • TORII KAZUMAMATSUURA HIROYUKIMORI KOJI
    • C22B47/00B09B3/00C22B5/04C22B7/00H01M10/54
    • Y02P10/214Y02P10/218Y02P10/224Y02W30/20Y02W30/84
    • PROBLEM TO BE SOLVED: To recover a manganese alloy from manganese oxide waste and waste derived from the positive electrode material of a lithium ion secondary battery.SOLUTION: Manganese in battery scrap is distributed to the side of a molten metal phase by smelting reduction utilizing a rotary melting furnace under a non-oxidizing atmosphere, thereby recovering the distributed battery scrap as a manganese alloy. Since battery scrap includes nickel, it is alloyed upon the melting to reduce its liquid phase point, and a recovery operation can be progressed at a relatively low temperature. Aluminum in the battery scrap is not separated, and is used as a reducing agent. Further, silicon scrap derived from a solar battery can be also utilized as a reducing agent, and in that case, the waste of the solar battery can be also simultaneously recycled.
    • 待解决的问题:从氧化锰废料中回收锰合金和从锂离子二次电池的正极材料得到的废物。 解决方案:电池废料中的锰通过在非氧化性气氛下的旋转熔化炉中熔融还原而分布到熔融金属相侧,从而回收作为锰合金的分布式电池废料。 由于电池废料包括镍,因此在熔融时合金化以降低其液相点,并且恢复操作可以在较低的温度下进行。 电池废料中的铝不分离,用作还原剂。 此外,还可以使用源自太阳能电池的硅废料作为还原剂,在这种情况下,也可以同时回收太阳能电池的浪费。 版权所有(C)2013,JPO&INPIT
    • 47. 发明专利
    • Chlorine leaching method of nickel sulfide
    • 镍硫酸盐浸出方法
    • JP2009046736A
    • 2009-03-05
    • JP2007214817
    • 2007-08-21
    • Sumitomo Metal Mining Co Ltd住友金属鉱山株式会社
    • KAKIMOTO MINORUTAKAISHI KAZUYUKI
    • C22B23/00C22B3/04
    • Y02P10/214Y02P10/224Y02P10/234
    • PROBLEM TO BE SOLVED: To provide a chlorine leaching method of a nickel sulfide, capable of improving leach rates of nickel and cobalt when carrying out chlorine leaching of the nickel sulfide produced by wet smelting of nickel oxide ore. SOLUTION: In the method, the nickel sulfide produced by wet smelting of nickel oxide ore is used as a raw material and is subjected to chlorine leaching in an aqueous chloride solution containing copper ions. The method comprises: a step (1) of adding hydrochloric acid to a slurry obtained by repulping the nickel sulfide in the aqueous chloride solution so as to adjust the pH to 0.4-0.6; a step (2) of blowing a chlorine gas into the slurry obtained in step (1) in the presence of copper ions; a step (3) of blowing air into the slurry obtained in step (2); and a step (4) of subjecting the slurry obtained in step (3) to solid-liquid separation so as to obtain a nickel-containing leachate and leaching residues. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种硫化镍的氯浸法,其能够在通过硫化镍矿石的湿法冶炼生产的硫化镍进行氯浸时提高镍和钴的浸出率。 解决方案:在该方法中,将通过氧化镍矿石的湿法冶炼产生的硫化镍用作原料,并在含有铜离子的氯化物水溶液中进行氯浸提。 该方法包括:将盐酸添加到通过在氯化水溶液中重新制备硫化镍获得的浆料中以将pH调节至0.4-0.6的步骤(1); 将步骤(2)在铜离子的存在下向步骤(1)中获得的浆料中吹入氯气; 在步骤(2)中获得的浆料中吹入空气的步骤(3); 和将步骤(3)中获得的浆料进行固液分离以获得含镍浸出液和浸出残渣的步骤(4)。 版权所有(C)2009,JPO&INPIT