METHOD OF NATURAL APATITE TREATMENT AND POWDER USED FOR STORAGE OF FUEL IRRADIATION ELEMENTS

摘要

FIELD: chemical technology. SUBSTANCE: method involves contacting natural apatite powder with an aqueous acid solution, for example, with diluted HCl or HNOfor time from some seconds to 10 min. Natural apatite surface composition is modified to that of hydroxylapatite. Modified material can be used as filler in containers for fuel irradiation elements storage. EFFECT: improved method of apatite treatment.