Combustion treatment of Co2+ and Cs+ exchanged zeolites

Immobilization of Cs and Sr in aluminosilicate matrices derived from natural zeolites

“…Only an amorphous phase occurred at 1100°C. Analogous results were achieved by Rodríguez-Trejo et al [26] that also record an abundant plagioclase component, likely inherited by the bulk sample. All of the products of the Cs-CLI LACBEN ceramization process contain traces of feldspar and quartz that were present in the original material.…”

Cadmium leaching from thermal treated and gamma irradiated Mexican aluminosilicates

“…The same effect was observed in various types of natural cation exchanged zeolitic materials [15][16][17].…”

“…It has been shown that thermal treatment of aluminosilicates exchanged with different cations Co 2+ , Sr 2+ , Cs + [6,12,13,[15][16][17][18][19] at high temperatures, may result in the collapse of channel openings that can block the release of adsorbed ions.…”

Study on Modification of NaX Zeolites: The Cobalt (II)-Exchange Kinetics and Surface Property Changes under Thermal Treatment

“…in water [12]. Thus, Co 2+ -exchanged zeolites are often thermally treated to have radioactive cations in unit cells or nonexchangeable crystalline phases [15]. Thermal treatment of zeolite causes dehydration leading to the redistribution of extraframework cations among different types of exchange sites [16].…”