| 钒和铝在含钒页岩草酸浸出液中的赋存状态研究 |
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| 引用本文： | 刘子帅,张一敏,黄晶.钒和铝在含钒页岩草酸浸出液中的赋存状态研究[J].有色金属(冶炼部分),2019(12):1-5. |
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| 作者姓名： | 刘子帅 张一敏 黄晶 |
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| 作者单位： | ;1.武汉科技大学资源与环境工程学院;2.武汉科技大学国家环境保护矿冶资源利用与污染控制重点实验室;3.武汉科技大学钒资源高效利用湖北省协同创新中心;4.武汉科技大学湖北省页岩钒资源高效清洁利用工程技术研究中心 |
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| 基金项目： | 国家自然科学基金资助项目（51774215）；湖北省自然科学基金杰出青年项目（2018CFA068） |
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| 摘 要： | 以某含钒页岩草酸浸出液为对象,研究了钒和铝在含钒页岩草酸浸出液中的赋存状态。首先采用Medusa软件初步确定了钒和铝在草酸体系中的存在形式,然后对钒和铝的负载有机相分别进行红外光谱和质谱研究。结果表明:钒负载有机相萃合物化学式为(R_4N)_2·VO(C_2O_4)_2],铝负载有机相萃合物的化学式分别为(R_4N)·Al(C_2O_4)_2]和(R4N)3·Al(C_2O_4)_3],因此可以确定含钒页岩草酸浸出液中钒主要以VO(C_2O_4)_2~(2-)络合阴离子存在,而铝主要以Al(C_2O_4)_2~-和Al(C_2O_4)_3~(3-)形式同时存在。
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| 关 键 词： | 含钒页岩 草酸 钒 铝 赋存状态 |
| 收稿时间： | 2019/7/1 0:00:00 |
| 修稿时间： | 2019/7/3 0:00:00 |
Speciation State of Vanadium and Aluminum in Oxalic Acid Leachate of Vanadium-Bearing Shale |
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| liuzishuai,Zhang Yimin and Huang Jing.Speciation State of Vanadium and Aluminum in Oxalic Acid Leachate of Vanadium-Bearing Shale[J].Nonferrous Metals(Extractive Metallurgy),2019(12):1-5. |
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| Authors: | liuzishuai Zhang Yimin and Huang Jing |
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| Affiliation: | School of Resource and Environmental Engineering, Wuhan University of Science and Technology,, |
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| Abstract: | Taking oxalic acid leachate of vanadium-bearing shale as the object, speciation state of vanadium and aluminum in oxalic acid leachate of vanadium-bearing shale were studied. Speciation state of vanadium and aluminum in oxalic acid system were preliminarily determined through Medusa software simulation. Then, the loaded organic phase of vanadium and aluminum were studied by infrared spectroscopy and mass spectrometry. The results show that extractable complex of vanadium-loaded organic phase is (R4N)2?VO(C2O4)2], and that of aluminum-loaded organic phase is (R4N)?Al(C2O4)2] and (R4N)3?Al(C2O4)3], respectively. Therefore, speciation state of vanadium and impurity aluminum in oxalic acid leachate can be determined, vanadium exists in form of VO(C2O4)22- complex anion, while the aluminum exists simultaneously as Al(C2O4)2- and Al(C2O4)33-. |
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| Keywords: | vanadium-bearing shale oxalic acid vanadium aluminum speciation state |
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