Stable Solidification of Silica-based Ammonium Molybdophosphate in Ceramic Matrices and Its Cesium-leaching Properties
| Autor: | Mingliang Xu, Yan Wu, Yuezhou Wei, Hitoshi Mimura |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Chemistry
Mineralogy Sintering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Mordenite 0104 chemical sciences Adsorption Distilled water Caesium visual_art visual_art.visual_art_medium Leaching (metallurgy) Ceramic 0210 nano-technology Allophane Nuclear chemistry |
| Zdroj: | Chemistry Letters. 47:179-182 |
| ISSN: | 1348-0715 0366-7022 |
| DOI: | 10.1246/cl.171002 |
| Popis: | A pressing/sintering method was used for the stable solidification of spent cesium adsorbent by adding natural allophane and mordenite. The stable Cs4Al4Si20O48 crystalline phase was recrystallized by the reaction of Cs2O, Al2O3, and SiO2 above 1000 °C, and the Cs immobilization ratio of approximately 100% was maintained. The solidified products exhibited excellent leaching resistance in distilled water and 0.1 M NaCl. The leaching rate of Cs at 90 °C was in the order of H2O ≈ 0.1 M NaCl ≪ 0.1 M HNO3 < 0.1 M NaOH. |
| Databáze: | OpenAIRE |
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