Kinetic Studies of Fluorination of Uranium Carbides by Fluorine, (I):The Fluorination of Uranium Monocarbide
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概要
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The rate of the fluorination reaction of UC with fluorine to form UF<SUB>6</SUB> has been studied in the temperature range between 240°and 300°C by following with a thermobalance the change in weight of the solid phase. The overall reaction takes place in two steps: In the first step, UC is rapidly converted to UF<SUB>4</SUB>, which, in the second step, fluorinates to UF<SUB>6</SUB>. During the first step, polymeric fluorocarbon is also produced and is found dispersed throughout the intermediate UF4 particles. At reaction temperatures below 270°C, the second step reaction roughly follows the linear law. At temperatures above 270°C, it comes to follow the parabolic law, presumably due to the formation of a compact layer of polymeric fluorocarbon on the surface of the particles. Analysis of the gaseous products using mass and infrared spectrophotometers revealed the formation of several kinds of lower fluorocarbons.
- 一般社団法人 日本原子力学会の論文
著者
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Sakurai Tsutomu
Department Of Chemistry And Fuel Research Japan Atomic Energy Research Institute
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Ishikawa Jiro
Department Of Urology Shin-suma Hospital
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SAKURAI Tsutomu
Department of Chemistry, Japan Atomic Energy Research Institute, Tokai-mura, lbaraki-ken.
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IWASAKI Matae
Department of Chemistry, Japan Atomic Energy Research Institute, Tokai-mura, lbaraki-ken.
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