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Hokkaido University Collection of Scholarly and Academic Papers >
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溶融塩化カルシウム中でのカルシウム還元
| Title: | 溶融塩化カルシウム中でのカルシウム還元 |
| Other Titles: | Calciothermic Reduction in Molten Calcium Chloride |
| Authors: | 鈴木, 亮輔1 Browse this author →KAKEN DB |
| Authors(alt): | Suzuki, Ryosuke O.1 |
| Issue Date: | Feb-2006 |
| Publisher: | 電気化学会 溶融塩委員会 |
| Journal Title: | 溶融塩および高温化学 |
| Volume: | 49 |
| Issue: | 1 |
| Start Page: | 27 |
| End Page: | 32 |
| Abstract: | Molten calcium chloride is one of the suitable media for reduction of oxides when it coexists with metallic calcium. It dissolves about 4 mol% Ca and 20 mol% CaO, which drives calciothermic reduction more effectively. Many reactive metals such as Ti, Ta and Nb could be successively reduced to match with the commercial quality. Diffusion of CaO from the solid layer adhered to the produced metal particles is a key to enhance deoxidation from the metal. The recycling of CaO was proposed using the electrolysis in CaCl2 melt, which was called OS method. In a few hours at 1173 K, a good quality of Ti was formed as powder. The differences between this OS process and FFC process were studied experimentally. MgO or ZrO2 membrane helps to avoid carbon contamination and to increase the current efficiency. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/50833 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鈴木 亮輔
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