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Phase Transformations in an Alkaline Titanosilicate System upon Variation of the Temperature and Time Parameters.
- Source :
-
Doklady Chemistry . Mar2020, Vol. 491 Issue 1, p49-53. 5p. - Publication Year :
- 2020
-
Abstract
- Using X-ray diffraction study of the solid phases formed in an alkaline titanosilicate system with an invariable concentration of components upon process temperature variation in the 180–210°C range and time variation from 1 to 7 days, structural genesis of the solid phases was established. This allowed predicting the final result, consisting in the formation of an ion exchange material as a powder or granules with a high sorption capacity for Cs+ and Sr2+ cations. The formation of granules of the titanosilicate sorbent with a colloidal silicon binder induced agglomeration of particles with partial isolation of their pore system, which decreased the sorption capacity for Cs+ by a factor of 1.5. Simultaneously, the uptake of Sr2+ increased by 10–15% due to the formation of insoluble Sr2+ silicate or hydroxide on the surface with pH of 8.5–9.5. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ION exchange (Chemistry)
*X-ray diffraction
*TEMPERATURE
*SORPTION
Subjects
Details
- Language :
- English
- ISSN :
- 00125008
- Volume :
- 491
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Doklady Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 144657299
- Full Text :
- https://doi.org/10.1134/S0012500820030039