Published October 2017 | Version v1
Journal article Metadata-only

Denitration of simulated high-level liquid waste by formic acid for the connection of PUREX process with TRPO process

Creators

  • 1. China University of Petroleum, Beijing (China). Faculty of Chemical Science and Engineering
  • 2. Tsinghua University, Beijing (China). Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology (INET)

Description

Denitration of simulated high level liquid waste (HLLW) by formic acid was performed for the connection of Plutonium Uranium Recovery by EXtraction (PUREX) process with trialkyl phosphine oxide (TRPO) process. The concentration of acid, anions and metal ions in solution were monitored under different mole ratios of formic acid to nitric acid and denitration time. Precipitates formed were characterized by Scanning electron microscope, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and X-ray absorption near edge structure. This work presents a promising strategy for the connection of PUREX process with TRPO process and also provides some new information on the precipitation behavior in denitration of HLLW. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
314
Journal Issue
1
Journal Page Range
p. 221-229
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
48085629
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Descriptors DEI
ANIONS; DENITRATION; ELECTRON MICROSCOPES; FORMIC ACID; HIGH-LEVEL RADIOACTIVE WASTES; IONS; LIQUID WASTES; METALS; NITRIC ACID; PHOSPHINE OXIDES; PLUTONIUM; PUREX PROCESS; URANIUM; X-RAY SPECTROSCOPY
Descriptors DEC
ACTINIDES; CARBOXYLIC ACIDS; CHARGED PARTICLES; CHEMICAL REACTIONS; ELEMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; IONS; MATERIALS; METALS; MICROSCOPES; MONOCARBOXYLIC ACIDS; NITROGEN COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHINES; PHOSPHORUS COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVE WASTES; REPROCESSING; SEPARATION PROCESSES; SPECTROSCOPY; TRANSURANIUM ELEMENTS; WASTES

Optional Information

Notes
36 refs.