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<p>The injection of acidic leaching solution during the in-situ leaching (ISL) process promoted uranium dissolution and ion mobilization, causing spatiotemporal variations in the leaching solution’s chemical composition. This study investigated the temporal variation in the chemical composition of the leaching solution over the one year, utilizing pumping and monitoring wells located in the southern unit of the C12 mining area within the Bayan Ula uranium deposit. The results showed that ion concentrations increased primarily due to the interactions between the highly acidic solution and the surrounding minerals.</p>

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Temporal and spatial evolution of chemical composition in acid in-situ leaching of uranium

  • 期刊论文

  • 发表日期：

    2025年6月18日

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  • Xuefeng Liu,
  • Jinhui Liu,
  • Ting He,
  • Yongguo Xing,
  • Yihan Yang,
  • Ruyi Wang

摘要

The injection of acidic leaching solution during the in-situ leaching (ISL) process promoted uranium dissolution and ion mobilization, causing spatiotemporal variations in the leaching solution’s chemical composition. This study investigated the temporal variation in the chemical composition of the leaching solution over the one year, utilizing pumping and monitoring wells located in the southern unit of the C12 mining area within the Bayan Ula uranium deposit. The results showed that ion concentrations increased primarily due to the interactions between the highly acidic solution and the surrounding minerals.