| KF/LiF对铝电解阴极渗透的影响 |
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| 引用本文： | 谭廷忠,黄健斌,狄跃忠,刘柯佳,冯乃祥. KF/LiF对铝电解阴极渗透的影响[J]. 轻金属, 2020, 0(4): 33-37 |
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| 作者姓名： | 谭廷忠 黄健斌 狄跃忠 刘柯佳 冯乃祥 |
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| 作者单位： | 广西来宾银海铝业有限责任公司,广西 来宾546100;东北大学 冶金学院,辽宁 沈阳 110819 |
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| 基金项目： | 国家重点研发计划;国家自然科学基金 |
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| 摘 要： | 碱金属和电解质的渗透是导致铝电解槽底部阴极炭块破损的主要原因。目前部分国产氧化铝的长期使用导致铝电解质中氟化锂、氟化钾含量偏高,从而造成电解工艺管理困难。本文研究了氟化钾和氟化锂对碱金属和电解质在工业铝电解所用半石墨化阴极中渗透行为的影响规律。结果表明:氟化钾对碱金属的渗透行为起到促进作用,氟化锂对碱金属的渗透行为起一定抑制作用。
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| 关 键 词： | 铝电解 阴极 渗透 |
Effects of KF/LiF on cathode penetration in aluminum electrolysis |
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| Tan Tinzhong,Huang Jianbin,Di Yuezhong,Liu Kejia,Feng Naixiang. Effects of KF/LiF on cathode penetration in aluminum electrolysis[J]. Light Metals, 2020, 0(4): 33-37 |
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| Authors: | Tan Tinzhong Huang Jianbin Di Yuezhong Liu Kejia Feng Naixiang |
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| Affiliation: | (Guangxi Laibin Yinhai Aluminum Co.,Ltd.,Laibin 546100,China;School of Metallurgy,Northeastern University,Shenyang 110819,China) |
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| Abstract: | Both alkali metal penetration and electrolyte penetration are main reasons for the cathode block damage in aluminum cell.The long-term application of some domestically-produced alumina has led to higher contents of KF and LiF in the electrolyte at present,thus making it difficult to manage the aluminum reduction process.This paper studied effects of KF and LiF on the penetration of akali metal and electrolyte in semi-graphitized cathode for aluminum reduction purpose.The results showed that KF can intensify alkali metal penetration,while LiF can restrain alkali metal penetration to some extent. |
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| Keywords: | aluminum reduction cathode penetration |
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