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Progress in Chlorination and Dissolution Technology of Oxides of Uranium and Plutonium

open access: yesHe huaxue yu fangshe huaxue, 2022
The dissolution process of oxides is a key step in the pyrochemical process of spent oxide fuel by electrolyzing in molten salt. The dissolved products will provide feeds for subsequent separation and recovery of U and Pu.
MENG Zhao-kai   +6 more
doaj   +1 more source

Evaluation of important phenomena through the PIRT process for a sodium fire event

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Sodium fire is one of key issues in sodium-cooled fast reactor (SFR) plants. JAEA has developed sodium fire analysis codes, a zone model code SPHINCS and a field model code AQUA-SF, to evaluate the consequence of sodium fire events.
Mitsuhiro AOYAGI   +5 more
doaj   +1 more source

Extraction of Uranium From Alkali Residue With Supercritical Carbon Dioxide Fluid

open access: yesHe huaxue yu fangshe huaxue, 2023
Alkali residue was dissolved by the ammonium hydrogen fluoride method, in which the uranium content is determined to be (16.7±0.3)%(n=6) by inductively coupled plasma optical emission spectrometry(ICP-AES).
GANG Fa-yuan   +6 more
doaj   +1 more source

Crystallization of Simulated High-Level Nuclear Waste Glasses Under Heat Treatment and Its Impacts on Glass Durability

open access: yesHe huaxue yu fangshe huaxue, 2023
Vitrification is currently the primary choice worldwide for high-level nuclear waste immobilization. This study investigated the crystallization behaviors of glasses containing 24%(mass fraction) and 30% simulated high-level nuclear waste, respectively ...
CHANG Jiong   +6 more
doaj   +1 more source

Optical potential parameters from 12C + Zr elastic scattering

open access: yesEPJ Web of Conferences, 2016
The angular distributions of 12C + 90,92,94,96Zr elastic scattering were measured with the Q3D magnetic spectrometer at the HI-13 tandem accelerator, Beijing. The real part of optical potential were extracted by analysing these angular distributions. The
Gan L.   +14 more
doaj   +1 more source

Apparent Stability Constant of Zr(Ⅳ)-Hydroxyurea Complex With pH Potentiometric Titration

open access: yesHe huaxue yu fangshe huaxue, 2022
Hydroxyurea(HU) is a reducing and complexing agent that can be used in the PUREX process. Zr is an important fission product in the spent fuel and main element of concern in the nuclear fuel reprocessing.
YANG Ya-ya   +7 more
doaj   +1 more source

Overview of development program for engineering scale extraction chromatography MA(III) recovery system

open access: yesMechanical Engineering Journal
Japan Atomic Energy Agency is developing extraction chromatography technology to recover MA(III) from spent nuclear fuel. Developments in the extraction chromatography system especially focusing on safety and stable operation are required for practical ...
Sou WATANABE   +7 more
doaj   +1 more source

Adsorption of Nd3+ by Carboxylated Graphene Oxide

open access: yesHe huaxue yu fangshe huaxue, 2022
Graphene oxide(GO) has attracted extensive attention in the field of water environment treatment due to its large specific surface area and rich oxygen-containing functional groups. Graphene oxide was modified by carboxylation. The effects of solution pH,
TAO Wu-qing   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

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