Conductive diamond electrode, sulfuric acid electrolysis method and sulfuric acid electrolysis apparatus using the same
    4.
    发明专利
    Conductive diamond electrode, sulfuric acid electrolysis method and sulfuric acid electrolysis apparatus using the same 有权
    导电钻石电极,硫酸电解法和硫酸电解设备

    公开(公告)号:JP2012132066A

    公开(公告)日:2012-07-12

    申请号:JP2010285100

    申请日:2010-12-21

    IPC分类号: C25B11/06 C25B1/28

    摘要: PROBLEM TO BE SOLVED: To provide a conductive diamond electrode showing high durability of the electrode and a high oxidizable substance production efficiency at a low cell voltage by controlling the thickness of a conductive diamond layer and crystallinity of conductive diamond; and to provide a sulfuric acid electrolysis method and a sulfuric acid electrolysis apparatus, each of which uses the electrode.SOLUTION: The conductive diamond electrode includes a conductive substrate and a conductive diamond layer coated on the conductive substrate, wherein (1) the conductive diamond layer has a thickness of 1 to 25 μm, (2) a potential window satisfies formula (1): 2.1 V≤potential window≤3.5 V, and (3) the ratio (A/B) of a diamond component A to a non-diamond component B as determined by Raman spectroscopy satisfies formula (2): 1.5

    摘要翻译: 要解决的问题:通过控制导电金刚石层的厚度和导电金刚石的结晶度,提供在低电池电压下显示高电极寿命的高导电金刚石电极和高可氧化物质的生产效率; 并提供硫酸电解方法和硫酸电解装置,其中每一种都使用电极。 导电金刚石电极包括导电基板和涂覆在导电基板上的导电金刚石层,其中(1)导电金刚石层具有1至25μm的厚度,(2)电位窗满足公式( 1):2.1V≤电势窗≤3.5V,(3)通过拉曼光谱测定的金刚石成分A与非金刚石成分B的比(A / B)满足式(2):1.5 - 1 拉曼光谱。 版权所有(C)2012,JPO&INPIT

    Sulfuric acid electrolysis process
    10.
    发明专利
    Sulfuric acid electrolysis process 有权
    硫酸电解法

    公开(公告)号:JP2010031362A

    公开(公告)日:2010-02-12

    申请号:JP2009139822

    申请日:2009-06-11

    IPC分类号: C25B15/08 C25B1/28 C25B11/06

    CPC分类号: C25B1/285

    摘要: PROBLEM TO BE SOLVED: To provide a sulfuric acid electrolysis process for stably producing an oxidizing substance by directly electrolyzing concentrated sulfuric acid by using a conductive diamond anode.
    SOLUTION: In the sulfuric acid electrolysis process, the temperature of an electrolyte containing sulfuric acid supplied to an anode compartment 4 and a cathode compartment 12 is controlled to be 30°C or higher; the flow rate F1 (L/min) of the electrolyte containing sulfuric acid supplied to the anode compartment 4 is controlled to be 1.5 times or more (F1/Fa≥1.5) of the flow rate Fa (L/min) of the gas formed on an anode side calculated from formula (1) of Fa=(I×S×R×T)/(4×Faraday constant), also the flow rate F2 (L/min) of the electrolyte containing sulfuric acid supplied to the cathode compartment 12 is controlled to be 1.5 times or more (F2/Fc≥1.5) of the flow rate Fc (L/min) of gas formed on the cathode side calculated from formula (2) of Fc= (I×S×R×T)/(2×Faraday constant).
    COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:提供通过使用导电金刚石阳极直接电解浓硫酸来稳定地生产氧化物质的硫酸电解方法。 解决方案:在硫酸电解方法中,将供给阳极室4和阴极室12的含有硫酸的电解质的温度控制在30℃以上; 供给阳极室4的含有硫酸的电解质的流量F1(L / min)被控制为形成的气体的流量Fa(L / min)的1.5倍以上(F1 /Fa≥1.5) 在Fa =(I×S×R×T)/(4×法拉第常数)的式(1)计算出的阳极侧,也提供给阴极的含有硫酸的电解质的流量F2(L / min) 根据式(2)计算的阴极侧气体的流量Fc(L / min)控制为室温12的1.5倍以上(F2 /Fc≥1.5)=(I×S×R× T)/(2×法拉第常数)。 版权所有(C)2010,JPO&INPIT