Physicochemical properties of UO3 products synthesized via a flame denitrification reactor

doi:10.1016/j.cjche.2025.06.017

Chinese Journal of Chemical Engineering ›› 2025, Vol. 86 ›› Issue (10): 186-192.DOI: 10.1016/j.cjche.2025.06.017

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Physicochemical properties of UO₃ products synthesized via a flame denitrification reactor

Jiaxin Liu¹, Mingming Wu², Qichao Li¹, Rui Li¹, Lei Li¹, Liudong Hou¹, Yi Liu², Jing Ma¹

1. China Nuclear Power Engineering Co., Ltd., Beijing 100142, China;
2. School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China

Received:2025-03-29 Revised:2025-05-21 Accepted:2025-06-11 Online:2025-08-08 Published:2025-10-28
Contact: Liudong Hou,E-mail:hould@cnpe.cc;Yi Liu,E-mail:diligenliu@dlut.edu.cn;Jing Ma,E-mail:majing@cnpe.cc
Supported by:
The authors are grateful to Xing Yuan Program of China National Nuclear Corporation (CNPE-8208) and National Natural Science Foundation of China (22478056) for the financial support.

Physicochemical properties of UO₃ products synthesized via a flame denitrification reactor

Jiaxin Liu¹, Mingming Wu², Qichao Li¹, Rui Li¹, Lei Li¹, Liudong Hou¹, Yi Liu², Jing Ma¹

1. China Nuclear Power Engineering Co., Ltd., Beijing 100142, China;
2. School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China

通讯作者: Liudong Hou,E-mail:hould@cnpe.cc;Yi Liu,E-mail:diligenliu@dlut.edu.cn;Jing Ma,E-mail:majing@cnpe.cc
基金资助:
The authors are grateful to Xing Yuan Program of China National Nuclear Corporation (CNPE-8208) and National Natural Science Foundation of China (22478056) for the financial support.

Abstract

Abstract: The rational utilization of nuclear energy is crucial in current global energy system. Using a flame denitrification reactor, this study develops uranium trioxide (UO₃), a critical intermediate product in the nuclear fuel cycle, and systematically characterizes its physicochemical properties. The UO₃ products are comprehensively examined to assess their suitability for downstream nuclear industry applications. Our results indicates that high-quality UO₃ products can be obtained using flame denitrification reactor at temperatures between 440 °C and 480 °C. This study reveals the considerable potential of UO₃ production via flame denitrification, marking a significant advancement towards enhanced nuclear fuel cycle systems.

Key words: Flame denitrification reactor, Uranium trioxide synthesis, Nuclear fuel cycle, Chemical processes, Thermodynamics

摘要： The rational utilization of nuclear energy is crucial in current global energy system. Using a flame denitrification reactor, this study develops uranium trioxide (UO₃), a critical intermediate product in the nuclear fuel cycle, and systematically characterizes its physicochemical properties. The UO₃ products are comprehensively examined to assess their suitability for downstream nuclear industry applications. Our results indicates that high-quality UO₃ products can be obtained using flame denitrification reactor at temperatures between 440 °C and 480 °C. This study reveals the considerable potential of UO₃ production via flame denitrification, marking a significant advancement towards enhanced nuclear fuel cycle systems.

关键词: Flame denitrification reactor, Uranium trioxide synthesis, Nuclear fuel cycle, Chemical processes, Thermodynamics

Jiaxin Liu, Mingming Wu, Qichao Li, Rui Li, Lei Li, Liudong Hou, Yi Liu, Jing Ma. Physicochemical properties of UO₃ products synthesized via a flame denitrification reactor[J]. Chinese Journal of Chemical Engineering, 2025, 86(10): 186-192.

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Physicochemical properties of UO₃ products synthesized via a flame denitrification reactor

Physicochemical properties of UO₃ products synthesized via a flame denitrification reactor

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