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Pressurization serves as a critical approach for regulating reaction rate in hydrometallurgical processes. To investigate the effects of pressure conditions on uranium leaching performance, laboratory-scale simulated heap leaching tests of uranium ore were carried out using a self-made room-temperature pressurized leaching device, with hard-rock type uranium ore from a mine in southern China as the research material. The results indicate that room-temperature pressurized leaching can accelerates the leaching reaction rate, yet it exerts no positive effect on improving the final uranium leaching rate. Pressurization exhibits a significant promoting effect on uranium leaching before the uranium leaching rate reaches 60%, and the leaching performance is optimal under a pressure of 40 kPa when the uranium leaching rate is below 85%. After 15 days of pressurized leaching, the highest uranium leaching rate reaches 94.66%, while the lowest is 85.90%. This study reveals that based on the correlation between pressure and leaching performance during room-temperature pressurized leaching, the uranium heap leaching technology can be effectively optimized by regulating pressure—a physical parameter with the advantages of controllability and low cost—thereby achieving the high-efficiency recovery of uranium resources.

, authors=Da LI, Jingyang LI, Sheng ZENG, Fanfei MENG, authorsList=Da LI, Jingyang LI, Sheng ZENG, Fanfei MENG, authorCompany=null, correspAuthors=Sheng ZENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1311360821662413677, articleId=1311360819561067371, tenantId=1146029695717560320, journalId=1146123346816638986, language=CN, title=压力条件对铀矿堆浸浸出效果的影响研究, columnId=1175805041991631542, journalTitle=铀矿冶, columnName=开采·选冶, runingTitle=null, highlight=null, articleAbstract=

加压是调控反应速率的重要手段。为探讨压力条件对铀浸出效果的影响,以南方某矿的硬岩型铀矿石为研究对象,通过自制的室温加压浸出装置,开展了铀矿堆浸室内模拟试验。结果表明:常温加压浸出可以加快反应速率,但不能提升铀的最终浸出率;在铀浸出率达到60%之前,通过加压可促进铀的浸出;在铀浸出率达到85%之前,40 kPa压力下的浸出效果最好。经过15 d加压浸出,铀浸出率最高为94.66%,最低为85.90%。研究显示,根据常温加压浸出过程中压力与浸出效果的关系,能以可控且低成本的调控压力方式对堆浸采铀技术进行优化,从而实现铀资源的高效开采。

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曾晟
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压力条件对铀矿堆浸浸出效果的影响研究
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李妲 , 李敬阳 , 曾晟 , 孟凡非
铀矿冶 | 开采·选冶 2026,45(3): 69-74
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铀矿冶 |开采·选冶 2026 , 45 (3) : 69 -74
压力条件对铀矿堆浸浸出效果的影响研究
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李妲, 李敬阳, 曾晟, 孟凡非
作者信息
  • 南华大学资源环境与安全工程学院,湖南 衡阳 421001
通讯作者:
曾晟
Effects of Pressure Conditions on Leaching Performance of Uranium Ore Heap Leaching
Da LI, Jingyang LI, Sheng ZENG, Fanfei MENG
Affiliations
  • School of Resources Environment and Safety Engineering, University of South China, Hengyang 421001, China
出版时间: 2026-08-20 doi: 10.13426/j.cnki.yky.2025.12.14
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加压是调控反应速率的重要手段。为探讨压力条件对铀浸出效果的影响,以南方某矿的硬岩型铀矿石为研究对象,通过自制的室温加压浸出装置,开展了铀矿堆浸室内模拟试验。结果表明:常温加压浸出可以加快反应速率,但不能提升铀的最终浸出率;在铀浸出率达到60%之前,通过加压可促进铀的浸出;在铀浸出率达到85%之前,40 kPa压力下的浸出效果最好。经过15 d加压浸出,铀浸出率最高为94.66%,最低为85.90%。研究显示,根据常温加压浸出过程中压力与浸出效果的关系,能以可控且低成本的调控压力方式对堆浸采铀技术进行优化,从而实现铀资源的高效开采。

铀矿堆浸  /  酸浸  /  加压堆浸  /  压力调控  /  浸出率  /  浸出效率  /  pH

Pressurization serves as a critical approach for regulating reaction rate in hydrometallurgical processes. To investigate the effects of pressure conditions on uranium leaching performance, laboratory-scale simulated heap leaching tests of uranium ore were carried out using a self-made room-temperature pressurized leaching device, with hard-rock type uranium ore from a mine in southern China as the research material. The results indicate that room-temperature pressurized leaching can accelerates the leaching reaction rate, yet it exerts no positive effect on improving the final uranium leaching rate. Pressurization exhibits a significant promoting effect on uranium leaching before the uranium leaching rate reaches 60%, and the leaching performance is optimal under a pressure of 40 kPa when the uranium leaching rate is below 85%. After 15 days of pressurized leaching, the highest uranium leaching rate reaches 94.66%, while the lowest is 85.90%. This study reveals that based on the correlation between pressure and leaching performance during room-temperature pressurized leaching, the uranium heap leaching technology can be effectively optimized by regulating pressure—a physical parameter with the advantages of controllability and low cost—thereby achieving the high-efficiency recovery of uranium resources.

uranium ore heap leaching  /  acid leaching  /  pressurized heap leaching  /  pressure regulation  /  leaching rate  /  leaching efficiency  /  pH
李妲, 李敬阳, 曾晟, 孟凡非. 压力条件对铀矿堆浸浸出效果的影响研究. 铀矿冶, 2026 , 45 (3) : 69 -74 . DOI: 10.13426/j.cnki.yky.2025.12.14
Da LI, Jingyang LI, Sheng ZENG, Fanfei MENG. Effects of Pressure Conditions on Leaching Performance of Uranium Ore Heap Leaching[J]. Uranium Mining and Metallurgy, 2026 , 45 (3) : 69 -74 . DOI: 10.13426/j.cnki.yky.2025.12.14
  • 湖南省研究生科研创新项目资助(LXBZZ2024246)
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doi: 10.13426/j.cnki.yky.2025.12.14
  • 接收时间:2025-12-23
  • 首发时间:2026-09-28
  • 出版时间:2026-08-20
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  • 收稿日期:2025-12-23
  • 修回日期:2026-01-28
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湖南省研究生科研创新项目资助(LXBZZ2024246)
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    南华大学资源环境与安全工程学院,湖南 衡阳 421001

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曾晟
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2种不同金属材料的力学参数
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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
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