Results 21 to 30 of about 2,358 (208)

Quantitative determination of the leaching range of in-situ leaching mining area by stagnation point

open access: yesNuclear Engineering and Technology
The leaching range is critical to the leaching efficiency, production cost and environmental effect of in-situ leaching of uranium. In this study, the groundwater dynamics of the well-site was simulated to determine the leaching range in condition of ...
Chong Zhang   +7 more
doaj   +2 more sources

Fractal kinetic characteristics of uranium leaching from low permeability uranium-bearing sandstone

open access: yesNuclear Engineering and Technology, 2022
The pore structure of uranium-bearing sandstone is one of the critical factors that affect the uranium leaching performance. In this article, uranium-bearing sandstone from the Yili Basin, Xinjiang, China, was taken as the research object.
Sheng Zeng   +5 more
doaj   +1 more source

Advances in Research on Uranium Isotope Fraction in Nature and Prospects

open access: yesHe huaxue yu fangshe huaxue, 2022
Uranium is the heaviest naturally occurring radioactive element in nature, and it is widely distributed in the earth’s crust. With the improvement of the technical accuracy of mass spectrometry to measure uranium isotope ratios, it is gradually ...
SONG Jing   +5 more
doaj   +1 more source

MANAGING THE HORIZON-ORIENTED IN-SITU LEACHING FOR THE URANIUM DEPOSITS OF MONGOLIA

open access: yesRudarsko-geološko-naftni Zbornik, 2023
This paper summarizes the results of evaluating uranium in-situ leaching (ISL) parameters for hydrogenous deposits in eastern Mongolia. This method, also known as in-situ recovery (ISR) or solution mining was proposed for mining used to extract uranium ...
Oleh Khomenko   +5 more
doaj   +1 more source

Estimating the Discharge Amount of Radon from Production Wells of CO2+O2 Uranium Mine

open access: yesJournal of Isotopes, 2023
CO2+O2 in situ leaching uranium mine is the representative of the third generation uranium mining and metallurgy technology in China. In terms of radiation protection, the radon emission and the effective dose of the public are significantly lower than ...
ZHANG Hui;NIU Jie;DENG Jun;XU Lechang
doaj   +1 more source

Full-scale pore size distribution features of uranium-bearing sandstone in the northwest of Xinjiang, China

open access: yesRoyal Society Open Science, 2021
As an important nuclear fuel, uranium in sandstone uranium deposits is mainly extracted by in situ leaching. The porosity of sandstone is one of the important indexes determining in situ leaching efficiency.
Sheng Zeng   +5 more
doaj   +1 more source

Determination of Uranium Distribution in Amino Phosphonic Acid Chelating Resin by LA-ICP-MS

open access: yesHe huaxue yu fangshe huaxue, 2023
In this paper, based on the research background of recovering uranium from wet-process phosphoric acid(WPA) by amino phosphonate acid chelating resin, the distribution of uranium in single particle amino phosphonate chelating resin was studied.
WANG Ya-nan   +8 more
doaj   +1 more source

Research on the degradation mechanism, product effects and optimization strategy of the tributyl phosphate solvent system in the PUREX process. [PDF]

open access: yesSmart Mol
This paper focuses on reviewing the degradation mechanisms of tributyl phosphate and its diluents, the analytical technique suitable for characterizing degradation products, and the impact of degradation products on the post‐treatment process, offering a theoretical foundation and technical insights in optimizing the plutonium uranium redox extraction ...
Lan T, Liu J, Liu Y.
europepmc   +2 more sources

Bioremediation of Uranium- and Nitrate-Contaminated Groundwater after the In Situ Leach Mining of Uranium [PDF]

open access: yesWater, 2021
Uranium and nitrate are common groundwater pollutants near in situ leach uranium mines. However, we still lack techniques that can simultaneously immobilize uranium and reduce nitrate using a single bacterial species. In this study, the potential of simultaneous uranium immobilization and nitrate reduction by a single AFODN (anaerobic Fe(II) oxidizing ...
Rehemanjiang Wufuer   +4 more
openaire   +1 more source

PROCESSING OF SULFURIC-ACID SOLUTIONS OF URANIUM IN SITU LEACHING WITH HIGH CONTENT OF CHLORINE [PDF]

open access: yes, 2021
The processing of sulfuric-acid solutions after uranium in situ leaching with high content of chlorine was studied. The precipitation by different methods allows to obtain uranium con-centrates with high quality according to ASTM C967 ...
Филатенкова, А. П.   +13 more
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