Home – Home – Jornals – Chemistry for Sustainable Development 2008 number 5

Synthesis of microspheric zeolite sorbents based on the vitrocrystalline cenospheres of power engineering ashes was carried out for the first time, without any crystallization nuclei or structure-forming components. As a result of hydrothermal processing, the aluminosilicate material of cenosphere wall is transformed into low-module zeolites with the conservation of the morphology of initial particles. The final products are hollow spheres with a size of 80-200 m; their walls are composed fully or partially of the crystals of NaA, NaX and NaP1 zeolites.