Method of producing an electrode usable as a flow- through...

Details Method of producing an electrode usable as a flow- through... Method of producing an electrode usable as a flow- through...

C - Chemistry, Metallurgy

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B

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C01B 17/80 (2006.01) B01D 53/50 (2006.01) C04B 35/52 (2006.01) C04B 35/532 (2006.01) C04B 35/83 (2006.01) C25B 1/22 (2006.01) C25B 11/12 (2006.01) C25B 11/14 (2006.01) G01N 27/30 (2006.01)

Patent

CA 1217982

ABSTRACT OF THE DISCLOSURE A method is disclosed for making an electrode of graphite and/or similar material which is useful as an anode particularly in the anodic oxidation of sulfur dioxide. The disclosure is also concerned with a particular utilization of a novel electrode. The electrode of the invention is made as follows. An electrode body formed of graphite-like carbon material is coated with a layer of cokable organic material selected from the group consisting of sugars, phenolic resins and asphalt pitch. The thus coated electrode body is heated in an inert atmosphere to a temperature in the range 400 to 800°C, thereby coking the layer. Directly thereafter the coated electrode is heated to a temperature in the range 1400 to 2000°C whereupon it is cooled.

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