Csの抽出クロマトグラフィー分離に関する試験(2)

• Material Type: 文書・図像類
• Title: Csの抽出クロマトグラフィー分離に関する試験(2)
• Author/Editor: 星 陽崇; 張 安運; 内田 裕美; 倉岡 悦周
• Author Heading: 星 陽崇; 張 安運; 内田 裕美; 倉岡 悦周
• Publication Date: 2005-02
• Publication Date (W3CDTF): 2005-02
• Alternative Title: Study of Cs Recovery by Extraction Chromatography (2)
• Periodical title: JNC TJ8400 2005-011
• Text Language Code: jpn
• Target Audience: 一般
• Note (General): 再処理高放射性廃液から抽出クロマトグラフィーによりCsを分離回収する方法について試験研究を行った。抽出剤CalixR14及びTBPを含浸した吸着材を合成し、Cs、Na、K、Rb、Sr、Laの吸着特性を調べた。模擬廃液を用いたカラム分離試験を行った。Csを分離回収できる見通しが得られた。; In order to apply CalixR14 extractant to extraction chromatography for Cs separation, basic characteristics of CalixR14 adsorbent were studied. CalixR14 impregnated resin and CalixR14 + TBP impregnated resin were prepared. CalixR14 extractant showed no adsorption for Cs by liquid-liquid extraction and CalixR14 impregnated resin also showed no adsorption for Cs. Therefore, it is concluded that CalixR14 itself has no affinity for Cs. On the other hand, Cs was adsorbed onto CalixR14-TBP impregnated resin from a concentrated nitric acid solution. The distribution coefficients of Cs were more than 10 cm$^{3}$/g from 2 to 6 M nitric acid. While Rb showed week adsorption, Na, K, Sr and La showed no adsorption and separation factor was over 199. A slight amount of CalixR14 and TBP was leaked from impregnated resin into the aqueous phase. Separation from simulated liquid waste was carried out by using a column packed with CalixR14-TBP adsorbent. Na, K, Sr and La were not adsorbed onto the column, however, Cs and Rb were adsorbed onto the column. Cs and Rb were eluted from the column by water. Cs and Rb were quantitatively recovered.
• Source: /JNC-TJ8400-2005-011.pdf （fulltext）; https://jopss.jaea.go.jp/pdfdata/JNC-TJ8400-2005-011.pdf
• Access Restrictions: 限定公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 日本原子力研究開発機構 : JOPSS:JAEA Originated Papers Searching System

• Summary, etc.: 再処理高放射性廃液から抽出クロマトグラフィーによりCsを分離回収する方法について試験研究を行った。抽出剤CalixR14及びTBPを含浸した吸着材を合成し、Cs、Na、K、Rb、Sr、Laの吸着特性を調べた。模擬廃液を用いたカラム分離試験を行った。Csを分離回収できる見通しが得られた。In orde...