C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/461 (2006.01) C25D 21/16 (2006.01) C25D 21/20 (2006.01)
Patent
CA 2097869
ABSTRACT OF THE DISCLOSURE In order to electrolytically detoxify or regenerate an aqueous solution containing cyanide, the cyanide is converted by means of anodic oxidation into carbon dioxide and/or nitrogen and/or ammonia, and at the same time the metallic portion of the cyanide compound is cathodically deposited; to improve the efficiency of the cyanide oxidation process, a metal and/or metal ions having cathodic potential are introduced into the solution. A dimensionally stable titanium-based electrode is used as the anode and it is electrocatalytically coated with oxides of platinum group metals and/or titanium, as well as with platinum metals; the cathode used is an expanded metal electrode made of copper-plated or silver-plated titanium.
Jakobs Olaf
Schneider Lothar
Stroder Ulrich
Gowling Lafleur Henderson Llp
Heraeus Elektrochemie Gmbh
Jakobs Olaf
Schneider Lothar
Stroder Ulrich
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