| 氮气搅拌下高硫铝土矿电解脱硫研究 |
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| 引用本文： | 葛岚,许鸿雁,公旭中,王志,王明涌.氮气搅拌下高硫铝土矿电解脱硫研究[J].中国环境管理干部学院学报,2014(6):42-46. |
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| 作者姓名： | 葛岚 许鸿雁 公旭中 王志 王明涌 |
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| 作者单位： | 河北联合大学化学工程学院;中国科学院过程工程研究所湿法冶金清洁生产国家工程实验室; |
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| 摘 要： | 采用氮气搅拌的方法，强化高硫铝土矿电解脱硫过程，考察了电解液配比、电流密度、气流速度等因素对脱硫率的影响。研究表明：脱硫率随电解液中NaCl含量增加而增加；电解脱硫率随着NaOH浓度和电流密度先升高后下降；增加气体流速能够显著提高电解脱硫率。基于电解脱硫特点，提出了铝土矿电解脱硫工艺与现有氧化铝生产的衔接方式。
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| 关 键 词： | 高硫铝土矿 脱硫 气体搅拌 电解 |
A Study on High Sulfur Bauxite Ore Electrolysis Desulfurization Under Gas Stirring |
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| Institution: | Ge Lan, Xu Hongyan, Gong Xuzhong, Wang Zhi, Wang Mingyong ( College of Chemical Engineering, Hebei United University, Tangshan Hebei 063009, China; National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China) |
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| Abstract: | The method of nitrogen stirring was used to improve the desulfurization efficiency of bauxite electrolysis. The effects of electrolyte component, current density, the gas velocity were examined. Results showed that the desulfurization ratio increased with the ratio of NaCl to NaOH and first increased and then decreased with the increasing of NaOH concentration and current density. The desulfurization ratio was enhanced significantly by increasing gas velocity. The process mode of high sulfur bauxite ore electrolysis desulfurization and alumina production process was proposed based on the characteristics of electrolytic desulfurization. |
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| Keywords: | high sulfur bauxite desulfurization gas stirring electrolysis |
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