Industrie De Nora S.p.a.

Fabio Timpano

Alice Calderara

Luciano Iacopetti

Anna Ramunni

Takashi Furusawa

Fabio Sala

The present invention relates to an electrode for electrochlorination processes, optionally operable under polarity reversal conditions, comprising an active layer provided with a doped Ru—Ti catalytic composition.

Electrode for electrochlorination processes

An electrode for electrolytic processes, in particular to an anode suitable for oxygen evolution having a valve metal substrate, a catalytic layer, a protection layer consisting of oxides of valve metals interposed between the substrate and the catalytic layer and an outer coating of oxides of valve metals. The electrode is particularly suitable for processes of cathodic electrodeposition of chromium from an aqueous solution containing Cr (III).

Electrode for oxygen evolution in industrial electrochemical processes

The present invention relates to an electrode for electrochlorination processes, optionally operable under polarity reversal conditions, comprising an active layer provided with a doped Ru&#x2014;Ti catalytic composition.

The invention relates to an electrode for electrolytic processes, in particular to an anode suitable for oxygen evolution comprising a valve metal substrate, a catalytic layer, a protection layer consisting of oxides of valve metals interposed between the substrate and the catalytic layer and an outer coating of oxides of valve metals. The electrode of the invention is particularly suitable for processes of cathodic electrodeposition of chromium from an aqueous solution containing Cr (III).

An electrode for electrochemical processes comprises a substrate of titanium or other valve metal, an intermediate protection layer based on valve metal oxides and a catalytic layer based on oxides of tin and of iridium doped with small amounts of oxides of elements selected between bismuth, antimony, tantalum and niobium. The electrode used in electrometallurgical processes, for example in the electrowinning of metals, as anode for anodic oxygen evolution presents a reduced overvoltage and a higher duration.

Anode for oxygen evolution

An electrode on valve metal substrate suitable for the evolution of oxygen in electrolytic processes is provided with a coating having a catalytic layer containing platinum group metals and one or more protective layers based on tin oxide modified with a doping element selected from bismuth, antimony or tantalum and with a small amount of ruthenium. The electrode is useful in processes of non-ferrous metal electrowinning.

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Milan, Italy

Fabio Timpano