| CO_2+O_2地浸采铀矿层渗透性影响因素 |
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| 引用本文： | 杜超超,周义朋.CO_2+O_2地浸采铀矿层渗透性影响因素[J].有色金属(冶炼部分),2019(7):48-53. |
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| 作者姓名： | 杜超超 周义朋 |
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| 作者单位： | 东华理工大学水资源与环境工程学院;东华理工大学核资源与环境省部共建国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目（41572231）；江西省科技计划项目（20142BFB29004,20151BBB60093） |
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| 摘 要： | 在CO2+O2地浸浸出过程中,渗透性是决定浸出效率的重要因素,提高渗透性对铀的浸出有很大作用。介绍了浸出过程中导致矿层渗透性降低的因素及增渗方法的研究进展。目前该工艺中关于如何抑制化学沉淀的问题已经得到了一定的解决,洗井工艺也取得了进步,但在渗透性的机理及微观尺度变化上的研究还不够全面,在增渗方法的研究上有些也还处于试验探索阶段,并未在实际生产中得到有效应用。
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| 关 键 词： | 地浸采铀 中性浸出 渗透性 化学沉淀 |
| 收稿时间： | 2019/3/1 0:00:00 |
| 修稿时间： | 2019/3/4 0:00:00 |
Influence Factors on Permeability of Ore Layer in Uranium CO2+O2 In-situ Leaching |
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| duchaochao and zhouyipeng.Influence Factors on Permeability of Ore Layer in Uranium CO2+O2 In-situ Leaching[J].Nonferrous Metals(Extractive Metallurgy),2019(7):48-53. |
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| Authors: | duchaochao and zhouyipeng |
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| Affiliation: | School of water Resources and Environmental Engineering, East China Institute of Technology, |
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| Abstract: | Permeability is an important factor determining leaching efficiency during process of CO2+O2 in-situ leaching. It is quite significant to raise permeability in uranium leaching. The factors leading to drop of permeability of ore layer during leaching and research progress of infiltration enhancement methods are introduced. Although problem of how to inhibit chemical precipitation is solved to a certain extent and there is progress in well washing technology, research on mechanism of permeability and micro-scale changes is yet comprehensive enough. Research of improving permeability is still at experimental exploration stage, which has not been effectively applied in actual production. |
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| Keywords: | uranium in-situ leaching neutral leaching permeability chemical precipitation |
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