| 现代盐湖杂卤石矿无机盐溶浸剂作用下溶解差异性研究 |
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| 引用本文： | 周同亮,程怀德,张西营,都永生,李玉龙,万维汉.现代盐湖杂卤石矿无机盐溶浸剂作用下溶解差异性研究[J].盐湖研究,2020,28(4):71-78. |
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| 作者姓名： | 周同亮 程怀德 张西营 都永生 李玉龙 万维汉 |
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| 作者单位： | 中国科学院青海盐湖研究所,中国科学院盐湖资源综合高效利用重点实验室,青海 西宁 810008;青海省盐湖地质与环境重点实验室,青海 西宁 810008;中国科学院大学,北京 100049;冷湖滨地钾肥责任有限公司,青海 德令哈 817000 |
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| 基金项目： | 西部之光项目“柴达木盆地杂卤石矿层储集性能评价及最佳溶采区预测”；国家自然科学基金项目(41672087)；青海省应用基础研究计划项目(2014-ZJ-704,2016-ZJ-781) |
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| 摘 要： | 以柴达木盆地昆特依盐湖大盐滩矿区杂卤石矿为原料开展杂卤石的溶浸试验,揭示不同无机盐溶浸剂作用下杂卤石的溶解作用并确定浸取钾的最佳溶浸剂和溶浸时间。实验结果表明:1)氯化物型溶浸剂效果优于硫酸盐型和碳酸盐型溶浸剂；2)MgCl2是最优的溶浸剂,该溶浸剂在72h左右溶钾效果最好;数值模拟显示,MgCl2溶浸剂溶K+速率具有阶段性,且具非线性的特征。这些实验结果将为矿区后期深入开展杂卤石溶浸研究及溶采提供重要参考依据。
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| 关 键 词： | 昆特依盐湖 杂卤石 钾溶浸 无机盐溶浸剂 MgCl2溶浸剂 |
| 收稿时间： | 2018/4/13 0:00:00 |
| 修稿时间： | 2018/7/4 0:00:00 |
Study on the Dissolution Difference of Polyhalite Ore in Modern Salt Lake by Inorganic Salts Leaching Agents |
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| ZHOU Tong-liang,CHENG Huai-de,ZHANG Xi-ying,DU Yong-sheng,LI Yu-long,WAN Wei-han.Study on the Dissolution Difference of Polyhalite Ore in Modern Salt Lake by Inorganic Salts Leaching Agents[J].Journal of Salt Lake Research,2020,28(4):71-78. |
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| Authors: | ZHOU Tong-liang CHENG Huai-de ZHANG Xi-ying DU Yong-sheng LI Yu-long WAN Wei-han |
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| Abstract: | In this study,the polyhalite ore from Kunty Playa in Qaidam Basin was chosen to be as testing material to carry out the leaching experiments in different leaching agents.The aim is to reveal the solution of polyhalite in different leaching agents and ascertain the optimal agent and leaching time.The leaching results showed that:1) Chloride-type leaching agents are better than the sulphate-type or carbon-type ones.2) MgCl2 is the optimal one among these agents and the best time to leach potassium in MgCl2 agent was at around 72h.Numerical simulation illustrates that the K+ dissolution rate in MgCl2 agent is characterized by periodicity and nonlinearity.These experimental results will have important reference value for further leaching study and solution mining of polyhalite deposits in salt lake area. |
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| Keywords: | Kunteyi playa Polyhalite potassium-leaching leaching agent MgCl2 agent |
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