Home Journals Articles Updates About
CN
image
收藏切换
Mass Transfer Kinetics of Thorium Extraction with Mixtures of Cextrant 230 and Cyanex 923
收藏切换
PDF
Hui WANG1, 2, Di GAO1, 2, 3, Yabin HUANG1, 2, Wangqiang KUANG1, 2, Shengting KUANG1, 2, 3, Wuping LIAO1, 2, 3, 4
Uranium Mining and Metallurgy | 2025, 44(3) : 41 - 49
Less
收藏切换
Uranium Mining and Metallurgy | 2025, 44(3): 41-49
Mass Transfer Kinetics of Thorium Extraction with Mixtures of Cextrant 230 and Cyanex 923
Full
Hui WANG1, 2, Di GAO1, 2, 3, Yabin HUANG1, 2, Wangqiang KUANG1, 2, Shengting KUANG1, 2, 3, Wuping LIAO1, 2, 3, 4
Affiliations
  • 1. Institute of Material and Chemistry, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
  • 2. Institute of Rare Earths Material and Chemistry, Jiangxi Institute of Rare Earths, Chinese Academy of Sciences, Ganzhou 341000, China
  • 3. School of Rare Earths, University of Science and Technology of China, Hefei 230026, China
  • 4. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
Published: 2025-09-10 doi: 10.13426/j.cnki.yky.2024.12.10
Outline
收藏切换

The kinetics of thorium extraction from hydrochloric acid medium by a binary mixed system of di(2-ethylhexyl) (2-ethylhexyl)aminomethylphosphonate (Cextrant 230) and trialkylphosphine oxide (Cyanex 923) was investigated using the laminar flow constant interfacial cell method. For comparison, the kinetics of thorium extraction by the Cextrant 230 single system was also studied. Systematic investigations were conducted on the effects of stirring rate, temperature, specific interfacial area, extractant concentration, acidity, and chloride ion concentration on the extraction rate.The results show that the extraction regime is deduced to be chemical reaction-controlled for the sole Cextrant 230 system and diffusion-controlled for the mixture system, respectively, and the extraction reaction occurring at the bulk phase would be the rate-determining step. The thorium extraction rate is barely affected with temperature variations in the sole Cextrant 230 system, but increased in the mixture system, with an activation energy of 14.74 kJ/mol. The concentration of chloride and extractants linearly related to the extraction rate indicates that the extraction of Th4+ both in the sole Cextrant 230 system and mixture system is a pseudo first-order reversible reaction.

thorium  /  Cextrant 230  /  Cyanex 923  /  binary system  /  extraction kinetics  /  chloride medium
Hui WANG, Di GAO, Yabin HUANG, Wangqiang KUANG, Shengting KUANG, Wuping LIAO. Mass Transfer Kinetics of Thorium Extraction with Mixtures of Cextrant 230 and Cyanex 923[J]. Uranium Mining and Metallurgy, 2025 , 44 (3) : 41 -49 . DOI: 10.13426/j.cnki.yky.2024.12.10
Appendix
Less
Year 2025 volume 44 Issue 3
PDF
289
99
Cite this Article
BibTeX
Article Info
doi: 10.13426/j.cnki.yky.2024.12.10
  • Receive Date：2024-12-25
  • Online Date：2025-09-06
  • Published：2025-09-10
Article Data
Affiliations
History
  • Received：2024-12-25
Funding
Affiliations
    1. Institute of Material and Chemistry, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341000, China
    2. Institute of Rare Earths Material and Chemistry, Jiangxi Institute of Rare Earths, Chinese Academy of Sciences, Ganzhou 341000, China
    3. School of Rare Earths, University of Science and Technology of China, Hefei 230026, China
    4. State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
References
Share
https://castjournals.cast.org.cn/joweb/yky/EN/10.13426/j.cnki.yky.2024.12.10
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House