| 在Na3AlF6-AlF3-CaF2-LiF-Al2O3体系中低温铝电解 |
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| 引用本文： | 卢惠民, 邱竹贤, 方克明, 洪彦若. 在Na3AlF6-AlF3-CaF2-LiF-Al2O3体系中低温铝电解[J]. 工程科学学报, 1999, 21(4): 324-326. DOI: 10.13374/j.issn1001-053x.1999.04.002 |
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| 作者姓名： | 卢惠民 邱竹贤 方克明 洪彦若 |
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| 摘 要： | 研究了Na3AlF6-AlF3-CaF2-LiF-Al2O3熔盐体系的物化性质,包括液相线温度、电导率和密度,并选择该体系中的低分子比电解质在100A垂直排铝式电解槽上进行了电解制铝.结果表明,用TiB2材料做阴极,当所使用的电解质分子数比为1.5~2.0,电解温度为800~930℃时,电流效率达到84.6%~88.3%,每kgAl的直流电耗为11.5~11.83kw·h.
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| 关 键 词： | Na3AlF6-AlF3CaF2LiF-Al2O3体系 低温铝电解 物化性质 电流效率 |
| 收稿时间： | 1998-09-25 |
Low temperature Aluminum Electrolysis in Na3AlF6-AlF3-CaF2-LiF-Al2O3 Bath System |
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| Lu Huimin, Qiu Zhuxian, Fang Keming, Hong Yanruo. Low temperature Aluminum Electrolysis in Na3AlF6-AlF3-CaF2-LiF-Al2O3 Bath System[J]. Chinese Journal of Engineering, 1999, 21(4): 324-326. DOI: 10.13374/j.issn1001-053x.1999.04.002 |
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| Authors: | Lu Huimin Qiu Zhuxian Fang Keming Hong Yanruo |
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| Abstract: | Based on the main physico-chemical properties of Na3AlF6-AlF3-CaF2-LiF-Al2O3 system studied, including liquidus temperature、electrical conductivity and bath density, a laboratory scale vertical discharging aluminum type electrolysis cell of about 100A capacity was run with TiB2 cathodes and low molar ratio(1.5~2.0) electrolytes at 800~930℃ range. Aluminum metal was obtained with 84.6%~88.3% current efficiencies and 11.54~11.83 kW·h/kg specific energy consumption. |
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| Keywords: | Na3AlF6-AlF3-CaF2- LiF-Al2O3 system low temperature aluminum electrolysis physicochemical property current efficiency |
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