| 双极膜电渗析制备偏钨酸铵溶液的初步研究 |
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| 引用本文： | 曾成威,张贵清,关文娟,尚广浩.双极膜电渗析制备偏钨酸铵溶液的初步研究[J].中国钨业,2012,27(2):32-36. |
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| 作者姓名： | 曾成威 张贵清 关文娟 尚广浩 |
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| 作者单位： | 中南大学 冶金科学与工程学院,湖南长沙410083;中南大学 稀有金属冶金与材料制备湖南省重点实验室,湖南长沙410083 |
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| 基金项目： | 国家水污染控制与治理重大专项（2010ZX07212-008） |
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| 摘 要： | 提出了一种双极膜电渗析制备偏钨酸铵的新工艺并对该工艺进行了初步的试验研究。结果表明,双极膜电渗析能有效将钨酸铵溶液转化为偏钨酸铵溶液,过程运行稳定,电流效率达73.84%,每吨WO3直流电耗仅为864.3 kW·h,WO3直收率大于99.5%。新工艺直接采用工业钨酸铵溶液为原料,具有原料成本低、收率高,产品质量好和环境友好等特点。
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| 关 键 词： | 偏钨酸铵 双极膜 电渗析 |
Preparation of Ammonium Metatungstate Solution Using Bipolar Membrane Electrodialysis |
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| ZENG Cheng-wei
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ZHANG Gui-qing
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GUAN Wen-juan
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SHANG Guang-hao.Preparation of Ammonium Metatungstate Solution Using Bipolar Membrane Electrodialysis[J].China Tungsten Industry,2012,27(2):32-36. |
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| Authors: | ZENG Cheng-wei ZHANG Gui-qing GUAN Wen-juan SHANG Guang-hao |
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| Affiliation: | ZENG Cheng-wei, ZHA NG Gui-qing,G UA N Wen-juan,SHA NG Guang-hao (1.School of Metallurgical Science and Engineering, Central South University, Changsha 410083, Hunan, China;2.Key Lab of I-lunan Province for Metallurgy and Material Processing of Rare Metals, Central South University, Changsha 410083, Hunan, China) |
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| Abstract: | A novel process of preparing ammonium metatungstate from ammonium tungstate solution using bipolar membrane electrodialysis was proposed and a preliminary study for the new process was conducted. The results showed that ammonium metatungstate solution can be prepared from ammonium tungstate solution by bipolar membrane electrodialysis effectively with stable operation with current efficiency reaching 73.84 % and DC consumption attaining 864.3 kWh/T WO3. The yield of WO3 was more than 99.5 %. With the industrial ammonium tungstate solution as raw material, this process has many advantages, including, low raw material cost, high WO3 yield, good product quality, and environmental friendliness. It has promising prospect in industrial application. |
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| Keywords: | ammonium metatungstate bipolar membrane electrodialysis |
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