The Behavior of Heat-treated Graphitizing Carbons in Wet Oxidation

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概要

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• The wet oxidation of three kinds of heattreated graphitizing carbons, petroleum coke, anthracite and coal coke, in a solution of potassium dichromate in phosphoric acid has been studied in order to clarify the relationship between the chemical reactivity and the carbon structure.<BR>Changes in the interlayer spacing and crystallite size, which are used as a measure of graphitization, have been examined by X-ray diffraction method for each specimen over the range of heat treatment temperatures from 1100 to 2800°C.<BR>The oxidation velocity increases with the degree of graphitization. The quantity of carbon dioxide evolved, <I>V</I>, is generally expressed by the following equation, <I>V</I>=<I>at<SUP>b</SUP></I>. The <I>b</I>-value depends on only the degree of graphitization and varies from 0.8 to 1.5 according to the increase of graphitization, but it does not depend on the oxidation temperatures.

• 社団法人 日本化学会の論文

著者

• Tagawa H.

  Research Laboratory Nippon Carbide Industries Company

• Nakajima Hitoshi

  Research Laboratory Nippon Carbide Industries Co., Inc.

関連論文

• The Kinetics of the Formation of Calcium Carbide in a Solid-Solid Reaction
• The Behavior of Heat-treated Graphitizing Carbons in Wet Oxidation

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