Firma C. Conradty

Other

Hans-Carl Rathjen

Konrad Koziol

Karl-Heinz Sieberer

A valve metal anode, for electrolytical processes, having an electron-active covering layer, is prepared by anchoring electron-activating substances, counteracting passivation of the anode, in a sintered porous carrier layer of valve metal. The carrier layer which is sintered onto the cleaned valve metal base may consist of a powder of the same metal or of the crystallographically similar metal. The infusion of the active substances into the carrier layer can be accomplished by impregnating and drying or baking the active substances, by precipitating them from the vapor phase, galvanically, or from the gaseous phase. The active substances may also be ingredients of the sinter mixture.

Metal anode for electrochemical processing and method of making same

A coated valve metal electrode for electrochemical processes, which has (a) an electrode base body of valve metal; (b) a base layer on said valve metal, said base layer comprising an electrically conducting element without valve effect, and (c) a cover layer comprising titanium dioxide and/or tantalum oxide with certain doping and stable oxides.

Electrode for electrochemical processes

An electrode for electrochemical processes, particularly for the electrolysis processes for manufacturing chlorine, consisting of a metal resistant to the electrolysis medium and of an active cover layer applied thereon and containing the substances causing the electrode process, which substances are compounds of the type

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Rothenbach a.d. Pegnitz, Germany

Hans-Carl Rathjen