• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Procedure for the production of metallic anodes, especially of titanium anodes, for the electrolytic obtaining of manganese dioxide, with a base consisting of a passivable metal and an activating covering layer generated by activating deposition generated by noble metal deposition, covering at least partially to the surface of the base, characterized in that, after the noble metals have been applied on the surface of the anode base, the latter is calcined at temperatures between 700 and 1100 ° C.
    公开号:SU1050573A3
    申请号:SU772533378
    申请日:1977-10-07
    公开日:1983-10-23
    发明作者:Прайслер Эберхард；Хербст Ханс；Хениг Дитмар
    申请人:Хехст Аг (Фирма)；Зигри Электрографит Гмбх (Фирма)；
    IPC主号:
    专利说明:

    sd
    about
    SP

    00
    This invention relates to electrochemical production, in particular to anodes used in the electrolytic production of manganese dioxide.
    A known electrode containing a titanium base with an active mass deposited on it from a mixture of oxides of metals of the platinum group and valve metals and a method of its manufacture, consisting in applying the components of the base to the base and with the subsequent heat treatment of harles 200-8OO C in an oxidizing atmosphere.
    The closest to the invention to the technical essence and the achieved result is a method of making an anode containing a thag base and a coating of a mixture of oxides of metals of the platinum group, according to which the base with coated components applied to it is subjected to heat treatment of vacuum 24O-110O C for 15-oO C2i min
    A disadvantage of the known methods of making an electrode is their insignificant resistance, because with; uniform removal of electrolytic manganese dioxide from the anode surface breaks down and the oxide coating layer, which leads to loss of electrode activity.
    The aim of the invention is to increase its durability.
     The goal is achieved by the fact that the titanium base is coated with a coating containing gold, ruthenium, and metals of the platinum group
    their mixture is heat treated under vacuum at 80 ° -1000 ° C for 3-5 hours.
    During heat treatment at the indicated parameters, a thin layer of an alloy containing 1-2% by weight of a precious metal and possessing excellent mechanical strength is formed on the surface of the anode. With a decrease in the calcination time, the necessary formation of an alloy layer is not achieved; with its increase over 5 hours, a significant diffusion of the coating metals in titanium is observed, which leads to a loss of electrocatalytic properties.
    Example. The titanium base is known from fat by means of known methods and is subjected to sandblasting. Then, a solution containing the components of the coating is applied to its surface. After that, the electrode is dried at 12 ° C and subjected to heat treatment at a pressure of 10 bar. This operation is repeated several times to obtain a coating of the required thickness. The fabricated electrodes are used to obtain electrolytic manganese dioxide. Dickle electrolysis unit continues from 10 Jun. 1. Deactivating the electrode during repeated cycles determines the resistance of the electrodes. Experimental data presented in the table.
    Thus, as follows from the 1C} of the presented data, the anodes manufactured according to this invention have a significantly longer working life than those made by the known method.
    3 2 5 3 3 4
    1O50573
    Table continuation
    权利要求:
    Claims (1)
    [1]
    METHOD FOR PRODUCING ANODE FOR ELECTROLYTIC PREPARATION OF MANGANESE DIOXIDE, including applying to a titanium oo 1 new coating containing gold, ruthenium, metals * of the platinum group or their mixture, heat treatment at 8001000 ° С in vacuum, exc and th 1 s. the fact that, in order to increase the stability of the j bone of the anode, heat treatment is carried out for 3-S h.
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    同族专利:
    公开号 | 公开日
    GB1545360A|1979-05-10|
    IE46061B1|1983-02-09|
    IN145674B|1978-11-25|
    DE2645414A1|1978-04-13|
    ES462891A1|1978-06-01|
    JPS53108078A|1978-09-20|
    JPS6027754B2|1985-07-01|
    DE2645414C2|1986-08-28|
    BR7706724A|1978-07-18|
    ZA776001B|1978-06-28|
    IE46061L|1978-04-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3461058A|1966-06-07|1969-08-12|Engelhard Ind Inc|Method of producing a composite electrode|
    US3711385A|1970-09-25|1973-01-16|Chemnor Corp|Electrode having platinum metal oxide coating thereon,and method of use thereof|DE2853820C2|1978-12-13|1987-05-27|Conradty Gmbh & Co Metallelektroden Kg, 8505 Roethenbach, De|
    IT1150124B|1982-01-21|1986-12-10|Oronzio De Nora Impianti|ANODIC STRUCTURE FOR CATHODIC PROTECTION|
    DE3346093A1|1983-12-21|1985-09-05|Hoechst Ag, 6230 Frankfurt|ACTIVATED METAL ANLANDS AND A METHOD FOR THE PRODUCTION THEREOF|
    DE3521827C2|1985-06-19|1990-01-11|Hoechst Ag, 6230 Frankfurt, De|
    JPH0438768Y2|1986-04-30|1992-09-10|
    JPH0337418B2|1987-04-16|1991-06-05|Nippon Mdm Kk|
    JPH0337420B2|1987-04-16|1991-06-05|Nippon Mdm Kk|
    GB8903321D0|1989-02-14|1989-04-05|Ici Plc|Metal mesh and production thereof|
    JP2011149044A|2010-01-20|2011-08-04|Tanaka Kikinzoku Kogyo Kk|Electrode for electrolytic oxidation reaction and method for producing the same|
    CN109385645B|2018-12-06|2021-05-11|普瑞斯矿业有限公司|Treatment method for improving conductivity of anode plate for electrolytic manganese dioxide|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2645414A|DE2645414C2|1976-10-08|1976-10-08|Titanium anodes for the electrolytic production of manganese dioxide, as well as a process for the production of these anodes|
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