Elucidating the Composition and Structure of Uranium Oxide Powders Produced via NO₂ Voloxidation.

ABSTRACT: Voloxidation is a potential alternative reprocessing scheme for spent nuclear fuel that uses gas-solid reactions to minimize aqueous wastes and to separate volatile fission products from the desired actinide phase. The process uses NO₂(g) as an oxidant for uranium dioxide (UO₂) fuel, ideally producing soluble uranium powders which can then be processed for full recycle. To continue development of the process flowsheet for voloxidation, ongoing examination of the process chemistry and associated process materials is required: discrepancies in the proposed chemical reactions that occur when spent nuclear fuel is exposed to NO₂(g) atmospheres must be addressed. The objective of this work is to analyze the intermediate solid phases produced during voloxidation

SUBMITTER: Peruski KM 

PROVIDER: S-EPMC10918823 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature