利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.04 秒)

    Method for preparing tantalum or niobium powders used for manufacturing capacitors
    3.
    发明申请
    Method for preparing tantalum or niobium powders used for manufacturing capacitors 审中-公开
    制造用于制造电容器的钽或铌粉末的方法

    公开(公告)号：US20070295609A1

    公开(公告)日：2007-12-27

    申请号：US11473605

    申请日：2006-06-23

    申请人： Sang Mun Jeong ,  Sung Bin Park ,  Jong Hyeon Lee ,  Chung Seok Seo ,  Seong Won Park ,  Eung Ho Kim

    发明人： Sang Mun Jeong ,  Sung Bin Park ,  Jong Hyeon Lee ,  Chung Seok Seo ,  Seong Won Park ,  Eung Ho Kim

    IPC分类号： C25C3/00

    CPC分类号： C25C3/26 ,  B22F9/20 ,  B22F2999/00 ,  C25C3/02 ,  C25C5/04

    摘要： Disclosed relates to a method for preparing tantalum or niobium powders used for manufacturing capacitors in an electrolytic reducing reactor including an anode, a cathode and a molten salt, the method comprising: obtaining a tantalum or niobium oxide, expressed by Ta2O(5-y) or Nb2O(5-y) where y=2.5 to 4.5, from a tantalum pentoxide Ta2O5 or a niobium pentoxide Nb2O5 generated partially by an alkaline metal electrolytically reduced via a first electrolytic reducing reaction that reduces an alkaline metal oxide from a molten salt comprising at least one metal halogen compound, selected from the group consisting of alkaline metal and alkaline earth metal, and an alkaline metal oxide on the cathode; and preparing a tantalum or niobium powder by a first electrolytic reducing reaction that reduces at least one metal halogen compound selected from the group consisting of the alkaline metal oxide and the alkaline earth metal on the cathode and by a second reducing reaction with the tantalum or niobium oxide, represented by Ta2O(5-y) or Nb2O(5-y) where y=2.5 to 4.5.

    摘要翻译： 本发明涉及一种制备用于在包括阳极，阴极和熔融盐的电解还原反应器中制造电容器的钽或铌粉末的方法，所述方法包括：获得由Ta 2表示的钽或铌氧化物， （5-y）或Nb 2 O（5-y）其中y = 2.5至4.5，从五氧化二钽 或通过碱金属部分地生成的五氧化二铌Nb 2 O 5 O 3，其通过电解还原的碱金属 第一电解还原反应，其从包含至少一种选自碱金属和碱土金属的金属卤素化合物和阴极上的碱金属氧化物的熔融盐中降低碱金属氧化物; 并通过第一次电解还原反应来制备钽或铌粉末，该反应在阴极上还原至少一种选自碱金属氧化物和碱土金属的金属卤素化合物，并通过与钽或铌的第二次还原反应 氧化物，由Ta 2 O（5-y）或Nb 2 O（5-y）表示，其中 y = 2.5〜4.5。