High-temperature gas-solid interaction of calcium silicate insulation with cesium hydroxide

ケイ酸カルシウム断熱材と水酸化セシウムの高温気固相互作用の研究

Rizaal, M.   ; 中島 邦久  ; 逢坂 正彦  ; 斎藤 拓巳*; 岡本 孝司*

Rizaal, M.; Nakajima, Kunihisa; Osaka, Masahiko; Saito, Takumi*; Okamoto, Koji*

Here we report an experimental study to investigate cesium retention on calcium silicate insulation following the gas-solid chemical interaction at high temperature. This study used cesium hydroxide and was performed at 800C under the oxidizing atmosphere. The experimental results showed that water-insoluble CsAlSiO and dicalcium silicate/larnite (CaSiO) were formed, which evidences that the insulation material could retain Cs in a stable form.