書誌事項
- タイトル別名
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- Air Oxidation of Aqueous Ferrous Sulfat
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説明
The air oxidation of an aqueous FeSO4 solution was Studied in an alkaline region by blowing air from a horizontal nozzle into the solution. The pH value of the solution was maintained at ca. 10 by adding Na2CO3 in the solution. No catalytic action of Cu2+ ion was observed. The rate of oxidation was not virtually affected by the temperature, but increased with the rise of the flow rate of air. A zero order rate equation was found. From the presumption that the reaction is composed of the sequential steps of dissolution of gaseous oxygen at the surface of rising air bubbles and the oxidation of Fe2+ ion and Fe(OH)2 precipitate by the dissolved oxygen, it was revealed that the rate determining step of the overall reaction is the step of oxygen dissolution. From the rate constant of the rate equation, the liquid-film mass transfer coefficient of dissolved oxygen in the liquid boundary layer at the bubble surface was estimated, and it was fairly well coincident with the directly measured values. The rise of the rate of oxidation with the flow rate of air stream was interpreted in terms of the increase in the surface area of rising air bubbles.
収録刊行物
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- 津山工業高等専門学校紀要
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津山工業高等専門学校紀要 16 5-12, 1978-10-20
National Institute of Technology, Tsuyama College
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詳細情報 詳細情報について
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- CRID
- 1050564288180203008
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- NII論文ID
- 120006580321
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- NII書誌ID
- AN00149351
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- ISSN
- 02877066
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- NDL書誌ID
- 1922223
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- 本文言語コード
- en
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
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