利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.011 秒)

    VERFAHREN ZUR HERSTELLUNG VON METALLHYDROXIDEN ODER BASISCHEN METALLCARBONATEN
    1.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON METALLHYDROXIDEN ODER BASISCHEN METALLCARBONATEN 有权
    用于生产金属氢氧化物或金属碳酸盐碱性

    公开(公告)号：EP1297199A1

    公开(公告)日：2003-04-02

    申请号：EP01943480.2

    申请日：2001-06-06

    申请人： H.C. Starck GmbH & Co. KG

    发明人： OLBRICH, Armin ,  GÖRGE, Astrid ,  SCHRUMPF, Frank ,  MEESE-MARKTSCHEFFEL, Juliane ,  STOLLER, Viktor ,  GILLE, Gerhard ,  SCHMOLL, Josef ,  KRUFT, Michael ,  NAUMANN, Dirk

    IPC分类号： C25B1/00

    CPC分类号： C25B1/00

    摘要： The invention relates to a method for producing metal hydroxides or alkaline metal carbonates by anode dissolution of the corresponding metals and precipitation of the hydroxides or alkaline carbonates in an aqueous medium. The anode dissolution of the metal components is carried out in the anode compartment of a three-compartment electrolytic cell. An aqueous auxiliary salt solution is fed to an intermediate compartment that is disposed between the anode compartment and the cathode compartment and that is separated therefrom by a porous membrane. An at least not alkaline metal salt solution is continuously taken from the anode compartment while an alkaline auxiliary salt solution is continuously taken from the cathode compartment. The at least not alkaline metal salt solution and the alkaline auxiliary salt solution are combined outside the electrolytic cell for the purpose of precipitating metal hydroxides or alkaline metal carbonates.

    KOBALTMETALLAGGLOMERATE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG
    6.
    发明公开
    KOBALTMETALLAGGLOMERATE, VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG 失效
    KOBALTMETALLAGGLOMERATE，VERFAHREN ZU IHRER HERSTELLUNG SOWIE DEREN VERWENDUNG

    公开(公告)号：EP0828578A1

    公开(公告)日：1998-03-18

    申请号：EP96919774.0

    申请日：1996-05-14

    申请人： H.C. Starck GmbH & Co. KG

    发明人： GÖRGE, Astrid ,  MEESE-MARKTSCHEFFEL, Juliane ,  NAUMANN, Dirk ,  OLBRICH, Armin ,  SCHRUMPF, Frank

    IPC分类号： B22F1 ,  B22F9 ,  C01G51 ,  C22B23 ,  H01M4 ,  H01M10

    CPC分类号： B22F9/22 ,  C01G51/04 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/80 ,  H01M4/52

    摘要： The present invention concerns cobalt metal agglomerates consisting of peanut-shaped primary particles, a method of producing them and their use. The primary particles have a mean particle size of between 0.1 and 0.7 νm. The proposed method is characterised in that in a first step an aqueous cobalt (II) salt solution of the formula CoX2, in which X = Cl, NO and/or 1/2 SO, is converted with aqueous solutions or suspensions of alkali and/or ammonium carbonates and/or hydrocarbonates at temperatures of between 40 and 100 °C, thus forming basic cobalt carbonate. This step is followed by separation and neutral salt-free washing. The basic cobalt carbonate thus obtained is converted by the addition of alkaline lyes to Co(OH)2, oxidized with oxidizing agents to form the heterogenite CoO(OH) which is then reduced with reducing agents to form the cobalt metal agglomerates. These can be used for producing cobalt sintered articles and positive electrodes in alkaline secondary batteries.

    摘要翻译： 本发明涉及由花生形状的一次颗粒组成的钴金属团聚体，其生产方法及其用途。 一次颗粒的平均粒度在0.1至0.7νm之间。 所提出的方法的特征在于，在第一步中，将式CoX 2的钴（II）盐水溶液（其中X = Cl，NO和/或1 / 2SO）与碱和/或碱土金属的水溶液或悬浮液 或碳酸铵和/或碳酸氢铵在40-100℃的温度下反应，从而形成碱式碳酸钴。 该步骤之后是分离和中性无盐洗涤。 如此得到的碱式碳酸钴通过加入碱性碱液转化为Co（OH）2，用氧化剂氧化形成多原子CoO（OH），然后用还原剂还原形成钴金属团聚体。 这些可用于生产碱性二次电池中的钴烧结制品和正极。