Immobilization of high-level wastes in stable mineral-like materials in a self-propagating high-temperature synthesis regime

摘要

The minerals which are most resistant to natural corrosive media and possess perovskite, zirconolite, fergusonite, and Y-Al garnet type structures are selected on the basis of an analysis of the mineralogical data. The minerals contain elements that are isomorphic to radionuclides appearing I high-level wastes. Synthesis of the analogs of calcinites, using metallothermal processes in a self-propagating high-temperature Synthesis regime, was investigated on model systems in application to the immobilization of calcinates of High-level wastes.