[1G12-16] Vitrification 3

[1G12] Investigation of the chemical form of ruthenium compounds in the vitrification process

(4)RuO₂ generation by reaction with Ru-La-Na mix nitrates and raw materials for vitrification

＊Takayuki Nagai¹, Hidekazu Kobayashi¹, Yoshihiro Okamoto¹, Nobuaki Sato², Takehiko Inose³, Seiichi Sato³, Kiyoshi Hatakeyama⁴, Katsumi Seki⁴ (1.JAEA, 2.Inst. Multidisciplinary Research for Advanced Materials, Tohoku Univ., 3.Inspection Development Company Ltd., 4.E&E Techno Service Co., Ltd.)

Keywords:vitrification, ruthenium compound, lanthanum compound, XRD, Raman spectrometry, synchrotron XAFS measurement

ガラス固化プロセスでは，廃液から生成したRu化合物がガラス原料と反応し，RuO₂結晶が成長すると推定されることから，Ru-La-Na混合硝酸塩とガラス原料を添加して加熱し，RuO₂の生成状況を確認した．