METHOD FOR CO-PRECIPITATION OF ACTINIDES AND METHOD FOR PREPARING MIXED ACTINIDE OXIDES

摘要

FIELD: inorganic chemistry, chemical technology. ^ SUBSTANCE: invention relates to a method for combined precipitation of actinides of the different oxidation degree (IV) wherein a selective chelating agent consisting of oxygen, carbon, nitrogen, hydrogen or carboxylic acid is added to aqueous solutions containing actinides in the oxidation degree (IV) followed by carrying out simultaneous precipitation of at least two complex compounds of actinides and precipitate is calcined. Prepared mixed actinide oxides of the oxidation degree (IV) can be used in producing the nuclear fuel. ^ EFFECT: improved preparing method. ^ 24 cl, 1 tbl, 5 ex