Development of porous glass-crystalline material based on cenospheres of energy ashes for radioactive waste disposal
- Krasnoyarsk State Technical University
Abstract
The scheme of separation of cenospheres of energy ashes was developed, laboratory batches of cenospheres of stabilized composition were obtained, their morphological features were studied, macrocomponent and microelement composition was determined. Methods of obtaining porous glass-crystalline material (porous matrices) on their basis have been developed and laboratory batches of porous matrices of various modifications have been obtained. Compositions and conditions for directed solid-phase crystallization of stable mineral-like ceramics like feldspars (strontium anorthite) and feldspathoids (nepheline and cesium-bearing nepheline, pollucite) from porous matrices with sodium, cesium and strontium oxides added in ratios corresponding to real liquid radioactive wastes were determined.