Results 11 to 20 of about 2,358 (208)

In-situ leaching of molybdenum and uranium by percarbonate and chloride-hypochlorite solutions

Записки Горного института, 2022
In-situ leaching of molybdenum and uranium is becoming an increasingly common process. The features of the material composition of ores, leading to a decrease in their filtration properties, were considered.
Igor Yu. Rasskazov, Artur G. Sekisov, Anna V. Rasskazova   +2 more
doaj   +3 more sources

Predicted Chemical Speciation Distribution of Uranium and Other Elements in Leaching Solution From Specific Uranium Deposit by Using CHEMSPEC Software [PDF]

He huaxue yu fangshe huaxue
During the in-situ leaching process of uranium, both the chemical composition of the leaching solution and the in-situ hydrogeochemical conditions can affect the chemical speciation of uranium. The chemical speciation of uranium significantly impacts its
Ya-wen CHEN, Wan-qiang ZHOU, Zheng-bang LIU, Ning GUO, Yu-qing NIU, Xiang-yun WANG, Hai-cheng WENG, Chun-li LIU   +7 more
doaj   +2 more sources

Study on the Leaching Conditions of the Shihongtan Uranium Deposit

Metals, 2023
CO2 + O2 is a relatively mature, neutral, in situ leaching process that has been widely used. However, the decrease in uranium concentration in the leaching solution during production has become a serious problem in the western section of the south ore ...
Xin Yuan, Jinhui Liu, Lingling Xu, Yipeng Zhou, Kai Zhao, Mintao Hu   +5 more
doaj   +2 more sources

Electrokinetic in situ leaching of U from low-permeability uranium ore

Nuclear Engineering and Technology
In this study, the impacts of electrokinetic in situ leaching of uranium (EK-ISLU) on the pore structure and connectivity of the low-permeability uranium ore and its leaching efficiency were investigated.
Chunguang Li, Wenji Wang, Zhenzhong Liu, Yongmei Li, Qi Liu, Longcheng Liu   +5 more
doaj   +2 more sources

Investigation on evolution characteristic of dynamic pore and reactive transport of leaching solute in uranium-bearing sandstone during in-situ alkaline leaching mining: An in-situ LF-NMR leaching experiment

Nuclear Engineering and Technology
In-situ uranium leaching involves complex physicochemical interactions critically influencing reservoir permeability and leaching efficiency. This study investigated microstructural changes in uranium-bearing sandstone during alkaline leaching mining ...
Tong Zhang, Xin Yang, Liang Yuan, Xuebin Su, Zhiming Du, Yihan Yang, Ming Tang, Chuanfei Zhang, Peng Qiao, Bingzhang Li   +9 more
doaj   +2 more sources

Effect of Pyrite on the Leaching Kinetics of Pitchblende in the Process of Acid In Situ Leaching of Uranium

Minerals, 2022
In the process of acid in situ leaching of sandstone uranium ore, pyrite, which is a common associated mineral of pitchblende, would inevitably participate in the reaction. Therefore, it is important to study the influence of pyrite on the leaching kinetics of pitchblende.
Peng Wang, Kaixuan Tan, Yongmei Li, Zhenzhong Liu, Chunguang Li, Wanyu Tan, Yunting Tian, Wuyang Huang   +7 more
openaire   +2 more sources

Review and Prospect of Uranium Hydrometallurgy in China [PDF]

He huaxue yu fangshe huaxue
Uranium is an important strategic resource and energy mineral. With the rapid development of nuclear power, the demand for natural uranium has been increasing year by year.
Xue-bin SU, Yuan YUAN, Xiu-min JIA, Wei CHENG, Hui LIU, Jin-xun DENG, Yu REN, Ying XU, Guo-long XU, Yun-sheng MENG, Ai-fei YI   +10 more
doaj   +2 more sources

Improved FMM for well locations optimization in in-situ leaching areas of sandstone uranium mines

Nuclear Engineering and Technology
Rapidly obtaining the coverage characteristics of leaching solution in In-situ Leaching Area of Sandstone Uranium Mines is a necessary condition for optimizing well locations reasonably. In the presented study, the improved algorithm of the Fast Marching
Mingtao Jia, Bosheng Luo, Fang Lu, YiHan Yang, Meifang Chen, Chuanfei Zhang, Qi Xu   +6 more
doaj   +2 more sources

Law and Mechanism of Different Electric Field Modes Enhancement Alkaline Leaching Sandstone-type Uranium Ore [PDF]

Yuanzineng kexue jishu
China’s uranium resources are rich in reserves and deposits, but they are mainly low-grade uranium ores with low content of uranium. Sandstone-type uranium ores are mainly mined by in-situ leaching (ISL), but when the carbonate content is high, their ...
LI Rubin1, 2, LI Chunguang1, 2, 3, LIU Zhenzhong1, LI Yongmei1, 2, HUANG Zixian1, 2, CHEN Rukang2, ZHANG Shengdong3, LIU Longcheng2
doaj   +2 more sources

A New Comprehensive Model to Simulate and Optimize Fluid Flow in Complex Well‐Formation System for In Situ Leaching Uranium

Energy Science & Engineering
In situ leaching (ISL) is an important method for green and efficient development of sandstone‐type uranium ore. It achieves ISL of uranium through the deployment of injection and extraction vertical well patterns.
Zhaokun Li, Xuebin Su, Yangquan Jiao, Yu Zhang, Yang Qiu, Xiaodong Hu   +5 more
doaj   +2 more sources