| Item type |
紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2014-03-04 |
| タイトル |
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タイトル |
LiF-REF₃(RE : La, Pr, Nd, Yb) 2成分系溶融塩中における金属La, Pr, NdおよびYbの溶解挙動 |
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言語 |
ja |
| タイトル |
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タイトル |
Dissolution Behaviors of Metallic Lanthanum, Praseodymium, Neodymium and Ytterbium in LiF-REF₃(RE : La, Pr, Nd, Yb) Binary Molten Salts |
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言語 |
en |
| 言語 |
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言語 |
jpn |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
嶋影, 和宜
平井, 伸治
山田, 豊和
高橋, 徹
作田, 庸一
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| 室蘭工業大学研究者データベースへのリンク |
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平井 伸治（HIRAI Shinji） |
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http://rdsoran.muroran-it.ac.jp/html/100000177_ja.html |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
In the production of rare earth metals by molten sa1t electrolysis, there is the dissolution problem of cathodic deposited metal in an electrolyte such as metal fog. These behaviors are considered to lower cathodic current efficiency in molten sa1t electrolysis. In order to clarify this problem, saturated solubilities of metallic lanthanum. praseodymium. neodymium and ytterbium in LiF- REF₃ (RE :La, Pr, Nd, Yb) binary mo1ten salts have been examined in grahite crucible at the temperature range of 1213K to 1323K, and reaction compounds after dissolution have been also identified by X-ray diffraction method. Dissolution reactions oflanthanum, praseodymium, neodymium and ytterbium in rare earth fluoride melts containing lithium fluoride could be classified by following three forms. Saturated solubilty of metal such as dissoution of lanthanum decreased with an increase in rare earth fluoride concentration in melts. Saturated solubilities of metals such as dissolutions of praseodymium and neodymium were not dependent on rare earth fluoride concentration in melts. Futhermore, saturated solubilty of metal such as dissoution of ytterbium increased with an increase in rare earth fluoride concentration in melts. These dissolution behaviors can be considered to be caused by the differences of dissolution reactions in melts. Metallic lanthanum predominantly reacts with LiF in binary melt by the displacement reaction to form both compound of LaF₂ and LaF₃. Metallic praseodymium and neodymium respectively form PrF₃ and NdF₃ compounde by the displacement reaction with LiF in melt at the initial stage of dissolution, and also react with PrF₃ and NdF₃ itself in binary melt by the disproportionation reaction to form PrF₂，a nd NdF₂，compounds，respectively. On the other hand，Metallic ytterbium reacts with LiYbF，complex coumpound in melt at the initial stage of dissolution to YbF，compound，and also dissolves in melt by the displacement reaction with LiF in melt at the final stage of dissolution. |
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言語 |
en |
| 書誌情報 |
ja : 室蘭工業大学研究報告. 理工編
en : Memoirs of the Muroran Institute of Technology. Science and engineering
巻 45,
p. 1-12,
発行日 1995-11-10
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| 出版者 |
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出版者 |
室蘭工業大学 |
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言語 |
ja |
| 論文ID（NAID） |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
NAID |
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関連識別子 |
110000351878 |
| 日本十進分類法 |
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主題Scheme |
NDC |
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主題 |
565.8 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
05802415 |
| 書誌レコードID |
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収録物識別子タイプ |
NCID |
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収録物識別子 |
AN00238225 |
| 権利 |
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言語 |
ja |
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権利情報 |
© 1995 室蘭工業大学 |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| フォーマット |
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内容記述タイプ |
Other |
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内容記述 |
application/pdf |
kiyo45_rikou_pp1-12.pdf (1.3 MB)
