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    Carbon Electrode For Generation Of Nitrogen Trifluoride Gas
    41.
    发明申请
    Carbon Electrode For Generation Of Nitrogen Trifluoride Gas 有权
    用于产生三氟化氮气体的碳电极

    公开(公告)号：US20070199828A1

    公开(公告)日：2007-08-30

    申请号：US11572938

    申请日：2005-08-03

    申请人： Akimasa Tasaka ,  Masashi Kodama ,  Udai Tanaka ,  Hitoshi Takebayashi ,  Tetsuro Tojo ,  Atsuhisa Mimoto

    发明人： Akimasa Tasaka ,  Masashi Kodama ,  Udai Tanaka ,  Hitoshi Takebayashi ,  Tetsuro Tojo ,  Atsuhisa Mimoto

    IPC分类号： C25B1/00

    CPC分类号： C25B1/245 ,  C25B11/14

    摘要： It is an object of the present invention to produce a carbon electrode having a texture with decreased pores and having relatively high mechanical strength by only being subjected to a process where a specified metal fluoride is mixed with a carbon material, then the mixture is baked, and to provide a carbon electrode for producing gaseous nitrogen trifluoride having a long life without the polarization of the carbon electrode even in any case of an NH4F—KF—HF series and an NH4F—HF series. The carbon electrode for producing gaseous nitrogen trifluoride of the present invention has a dense texture with an average pore size of 0.5 μm or less. It is preferable that the carbon electrode contains a carbonaceous material, and at least one of more kinds selected from magnesium fluoride and aluminum fluoride which have a melting point not lower than the baking temperature of the carbonaceous material. Also, it is preferable that the content of at least one of more kinds selected from the magnesium fluoride and the aluminum fluoride is 3 to 10 wt %.

    摘要翻译： 本发明的目的是通过仅将特定的金属氟化物与碳材料混合的方法制造具有孔隙减小和机械强度相对较高的织构的碳电极，然后将该混合物烘烤， 并且即使在NH 4 F-KF-HF系列和NH 4系列的任何情况下，也可提供一种具有长寿命而不具有碳电极极化性的气态三氟化氮的碳电极 F-HF系列。 本发明的生产气态三氟化氮的碳电极具有平均孔径为0.5μm以下的致密组织。 优选碳电极含有碳质材料和熔点不低于碳质材料的烧成温度的氟化镁和氟化铝中的至少一种。 此外，从氟化镁和氟化铝中选出的至少一种的含量优选为3〜10重量％。

    Carbon electrode having low polarizability
    46.
    发明授权
    Carbon electrode having low polarizability 失效
    具有低极性的碳电极

    公开(公告)号：US5069764A

    公开(公告)日：1991-12-03

    申请号：US389644

    申请日：1989-08-04

    申请人： Nobuatsu Watanabe ,  Tetsuro Tojo ,  Yong-bo Chong ,  Kenji Ikari

    发明人： Nobuatsu Watanabe ,  Tetsuro Tojo ,  Yong-bo Chong ,  Kenji Ikari

    IPC分类号： C25D17/10 ,  C04B41/50 ,  C25B11/06 ,  C25B11/14

    CPC分类号： C25B11/14 ,  C04B41/5018

    摘要： Disclosed is a carbon electrode having low polarizability, comprising a porous carbon block and, contained in the pores thereof, a metal fluoride mixture composed of LiF and a metal fluoride other than LiF. This carbon electrode can easily be obtained by a skillful impregnation method. When such a carbon electrode is used as an anode in electrolyzing an electrolyte comprising a mixed molten salt system of potassium fluoride and hydrogen fluoride in an electrolytic cell, polarization of the anode is extremely low and the anode effect is remarkably suppressed so that the electrolysis can stably be performed while exhibiting not only a high anodic current density but also a low voltage.