Anode for electrolytic processes
AssigneeHooker Chemicals & Plastics Corporation
InventorEdward H. Cook, Jr.
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Abstract
An electrode for use in electrolytic processes, comprises a valve metal substrate, a coating thereon of conductive tin oxide containing a doping amount of tungsten, preferably up to about one mole percent of tungsten, based on moles of tin, and an outer coating of a noble metal or noble metal oxide.
Claims9
An anode for use in electrolytic processes comprising a valve metal substrate, a coating thereon of conductive tin oxide containing a doping amount of tungsten, and an outer coating of at least one of noble metal or noble metal oxide.
In a method of electrolyzing aqueous alkali metal chloride solutions in an electrolytic cell comprising an anode and a cathode wherein chlorine and an alkali metal hydroxide are formed, the improvement which comprises using as the anode, a composite structure comprising a valve metal substrate, a coating thereon of conductive tin oxide containing a doping amount of tungsten, and an outer coating on the surface of the conductive tin oxide, of at least one of a noble metal or noble metal oxide.
Dependencies are inferred from the claim text.