Results 21 to 30 of about 17,959 (285)
Analysis of Slope Stability in Ion-Adsorption Rare Earth Mine Under In Situ Leaching Condition
Applied SciencesIonic rare earth ores are primarily extracted through in situ shallow well leaching. The leaching solutions engage in a physical–chemical coupling effect with the rare earth ores, which diminishes the strength parameters of weathered ore layers.
Wenyao Yuan +6 more
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Nuclear Engineering and TechnologyIn-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 +9 more
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Overview of leaching remediation of heavy metal contamination in soil [PDF]
E3S Web of Conferences, 2021 The remediation methods of heavy metal contaminated soil can be divided into bioremediation, physical remediation and chemical remediation. Chemical remediation mainly includes soil leaching and chemical curing.
Shuang Cui, Qing Han, Tianyi Zhang
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He jishu, 2022 BackgroundIn the process of in-situ leaching of uranium, pore blockage greatly limits the leaching efficiency of uranium, and the pore blockage is mainly due to the complex physical and chemical action of minerals and leaching agents in in-situ leaching ...
ZENG Sheng +3 more
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Geofluids, 2022 In situ leaching (ISL) is becoming the main mining practice for sandstone-type uranium deposits in China. The key to ISL technology is to aid the leaching solution in contacting the ore bed over a large range, which will induce a series of chemical ...
Qizhi Wang +12 more
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Fractal kinetic characteristics of uranium leaching from low permeability uranium-bearing sandstone
Nuclear 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
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Quantifying Phosphorus Leaching Loss from Mollisol with Organic Amendments
Agronomy, 2022 The phosphorus (P) leaching from continuous fertilization is generally neglected in mollisol. The in situ leaching loss of phosphorus (P), especially dissolved organic P, is poorly quantified under organic amendments given its potential environmental ...
Hongyan Wang +8 more
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Frontiers in Earth Science, 2023 CO2 + O2in situ leaching has been extensively applied in uranium recovery in sandstone-type uranium deposits of China. The geochemical processes impact and constrain the leaching reaction and leaching solution migration; thus, it is necessary to study ...
Xingyu Zhou +22 more
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Conception of in-situ fluidization mining for deep metal mines
矿业科学学报, 2021 With the depletion of shallow surface metal mineral resources, China's underground metal mining was gradually transferred to deep mining (>1 000 m).Because of the special mining conditions of high stress, great lifting depth, and high temperature in ...
Wu Aixiang +3 more
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Nuclear Engineering and Technology, 2023 Laboratory experiments and point monitoring of reservoir sediments have proven that stable sulfate reduction (SSR) can lower the concentrations of toxic metals and sulfate in acidic groundwater for a long time.
Zhenzhong Liu +6 more
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