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Solubility of gaseous carbon dioxide in molten LiCl-Li2O

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タイトル: Solubility of gaseous carbon dioxide in molten LiCl-Li2O
著者: Wakamatsu, Takafumi 著作を一覧する
Uchiyama, Takuya 著作を一覧する
Natsui, Shungo 著作を一覧する
Kikuchi, Tatsuya 著作を一覧する
Suzuki, Ryosuke O. 著作を一覧する
キーワード: Molten salt
Phase diagram
Carbon dioxide
発行日: 2015年 1月15日
出版者: Elsevier
誌名: Fluid phase equilibria
巻: 385
開始ページ: 48
終了ページ: 53
出版社 DOI: 10.1016/j.fluid.2014.10.046
抄録: Carbonate ions in LiCl-Li2O salt are a source of carbon contamination in the electrolytic refining of metal oxides, and their concentration is also an essential information for understanding the CO2 decomposition process. In this study, the solubility of gaseous CO2 in molten LiCl-Li2O was studied with the goal of developing processes to decompose the oxides effectively. Ar-CO2 gas mixtures were dissolved in molten salts containing various amounts of Li2O, and the solubility of the CO2 gas was calculated by measuring the mass difference between the molten salts before and after the CO2 dissolution. The molar amount of dissolved CO2 gas was almost as large as the molar quantity of Li2O when the partial pressure of CO2 was 1.0 or 0.5 atm for Li2O concentrations in the range of 0-60 mol%. This confirms that a large quantity of the oxide ions reacted with the CO2 gas, resulting in the generation of carbonate ions.
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 鈴木 亮輔


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