ダウンロード数: 704
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
Manuscript-Matsumoto.pdf | 458.11 kB | Adobe PDF | 見る/開く |
タイトル: | Elimination of AsF3 from anhydrous HF using AgFAsF6 as a mediator |
著者: | Matsumoto, Kazuhiko https://orcid.org/0000-0002-0770-9210 (unconfirmed) Hagiwara, Rika https://orcid.org/0000-0002-7234-3980 (unconfirmed) |
著者名の別形: | 松本, 一彦 |
キーワード: | Arsenic Hydrogen fluoride Purification Arsenic trifluoride |
発行日: | Jul-2010 |
出版者: | Elsevier B.V. |
誌名: | Journal of Fluorine Chemistry |
巻: | 131 |
号: | 7 |
開始ページ: | 805 |
終了ページ: | 808 |
抄録: | Elimination of the arsenic (III) impurity AsF3 from anhydrous hydrogen fluoride has been demonstrated using a bench-scale apparatus (~500 mL of HF), with a Ag(II) salt AgFAsF6 as a mediator. In this process, AsF3 is oxidized by AgFAsF6 to AsF5. In the next step, AsF5 is eliminated from HF by reaction with NaF. The oxidizer, AgFAsF6, is reduced to AgAsF6 which is regenerated to AgFAsF6 by F2 in HF at room temperature. This method can reduce the arsenic content in HF from a few hundred ppm to the industrially-required level (<3 ppm). The results for three other methods (distillation, oxidation by F2 gas, and oxidation by K2NiF6) are reported and compared with the AgFAsF6 method in a preliminary examination (using ~4 mL of HF). |
著作権等: | © 2010 Elsevier B.V. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/126622 |
DOI(出版社版): | 10.1016/j.jfluchem.2010.04.006 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。