The Kinetics of the Formation of Calcium Carbide in a Solid-Solid Reaction
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概要
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The kinetics of the formation of calcium carbide in the solid state reaction of calcium oxide with carbon has been examined by using a thermobalance in the temperature range 1600 to 1800°C and at 50, 100 and 200 mmHg of carbon monoxide. The reaction ratio vs. time curves were parabolic in all experimental runs, and the reaction followed parabolic kinetics: (1-<SUP>3</SUP>\sqrt1-<I>x</I>)<SUP>2</SUP>=<I>kt</I>. On the other hand, the decomposition of calcium carbide as a successive reaction occurred from the specimen surface and was described as a zero-order reaction. As the reaction velocity depended strongly on the pressure of carbon monoxide, it is considered that the reaction rate is governed by the diffusion process of gas through the product layer, as well as that of solids into the solid and product layer.
- 社団法人 日本化学会の論文
著者
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Sugawara Hideo
Research Laboratory Nippon Carbide Industries Company
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Tagawa H.
Research Laboratory Nippon Carbide Industries Company
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Tagawa Hiroaki
Research Laboratory Nippon Carbide Industries Company
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