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      CCl₄에 의한 Ta₂O_5의 염화반응에 대한 속도론적 연구 = Study on the Kinetics of the Chlorination Reaction of Tantalum Pentoxide by Carbon Tetrachloride

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      https://www.riss.kr/link?id=A45030288

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      다국어 초록 (Multilingual Abstract)

      The chlorination reaction of tantalum pentoxide is one of the important intermediate steps to produce high purity tantalum metal by a chlorination method. The results of experiments on the kinetics of the reaction between tantalum pentoxide and gaseous carbon tetrachloride are presented in this paper. The experiments were carried out in the temperature range 723 and 798 K, using a thermogravimetric analysis technique. The solid reactant was powder of tantalum pentoxide (-44 μm). A shrinking core model was found to fit well the chlorination reaction rate over the entire temperature range. The chlorination reaction was controlled by surface chemical reaction, and an activation energy of 46.2 kJ/mol (11.0 kcal/mol) was obtained.
      (Received February 1, 2005)
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      The chlorination reaction of tantalum pentoxide is one of the important intermediate steps to produce high purity tantalum metal by a chlorination method. The results of experiments on the kinetics of the reaction between tantalum pentoxide and gaseou...

      The chlorination reaction of tantalum pentoxide is one of the important intermediate steps to produce high purity tantalum metal by a chlorination method. The results of experiments on the kinetics of the reaction between tantalum pentoxide and gaseous carbon tetrachloride are presented in this paper. The experiments were carried out in the temperature range 723 and 798 K, using a thermogravimetric analysis technique. The solid reactant was powder of tantalum pentoxide (-44 μm). A shrinking core model was found to fit well the chlorination reaction rate over the entire temperature range. The chlorination reaction was controlled by surface chemical reaction, and an activation energy of 46.2 kJ/mol (11.0 kcal/mol) was obtained.
      (Received February 1, 2005)

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      목차 (Table of Contents)

      • Abstract
      • 1. 서론
      • 2. 실험방법
      • 3. 실험결과 및 고찰
      • 4. 결론
      • Abstract
      • 1. 서론
      • 2. 실험방법
      • 3. 실험결과 및 고찰
      • 4. 결론
      • REFERENCES
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