| 动态扩散渗析法回收盐酸的实验与模型分析 |
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| 引用本文： | 孙帅 孙宏骞 宋静 曲景奎 王勇 齐涛. 动态扩散渗析法回收盐酸的实验与模型分析[J]. 过程工程学报, 2021, 21(1): 57-63. DOI: 10.12034/j.issn.1009-606X.220052 |
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| 作者姓名： | 孙帅 孙宏骞 宋静 曲景奎 王勇 齐涛 |
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| 作者单位： | 中国科学院大学化学工程学院,北京100049;中国科学院过程工程研究所绿色过程与工程重点实验室,北京100190;中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室,北京100190;中国科学院过程工程研究所绿色过程与工程重点实验室,北京100190;中国科学院过程工程研究所湿法冶金清洁生产技术国家工程实验室,北京100190 |
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| 基金项目： | 中科院重点部署项目;中科院前沿科学重点研究项目;国家自然科学青年基金 |
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| 摘 要： | 近些年来,工业废酸的处理和回收逐渐成为困扰研究者的难题,膜分离技术以诸多优势成为研究重点.扩散渗析作为一种低能环保的膜分离技术,在废酸回收领域运用广泛,酸回收率一直是扩散渗析过程的重要指标.本工作以0.5～5mol/L盐酸为原料进行动态扩散渗析实验,考察进料酸浓度、进料流量(6～20mL/min)、水酸流量比(0.6～...
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| 关 键 词： | 扩散渗析 酸回收 阴离子交换膜 盐酸 渗透系数 |
| 收稿时间： | 2020-02-19 |
Experimental and model analysis of hydrochloric acid recovery by dynamic diffusion dialysis |
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| Shuai SUN Hongqian SUN Jing SONG Jingkui QU Yong WANG Tao QI. Experimental and model analysis of hydrochloric acid recovery by dynamic diffusion dialysis[J]. Chinese Journal of Process Engineering, 2021, 21(1): 57-63. DOI: 10.12034/j.issn.1009-606X.220052 |
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| Authors: | Shuai SUN Hongqian SUN Jing SONG Jingkui QU Yong WANG Tao QI |
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| Affiliation: | 1. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China2. Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China3. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | In recent years, membrane separation technology has become the focus of industrial waste acid treatment and recovery with many advantages. As a kind of environmentally friendly membrane separation technology, diffusion dialysis is widely used in the field of waste acid. The experiment was carried out with 0.55 mol/L hydrochloric acid as raw material. Besides, the effects of operating parameters such as the flow rate of feed acid (620 mL/min) and flow ratio of water and acid (0.61.4) were examined. The transport of hydrochloric acids through anion-exchange membrane DF-120 in a counter-current continuous dialyzer was investigated in detail. The important parameter, permeability coefficient of the membrane, was optimized by polynomial fitting. A simpler mathematical model of lumped parameters established, which could predict the hydrochloric acid recovery rate during the diffusion dialysis process. These obtained points were investigated to verify the mathematical model and it was proved excellent. The model was used for predictions under more detailed experimental operating conditions. It also provided reference methods and arguments for actual industrial production. |
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| Keywords: | Diffusion dialysis Acid recovery Anion-exchange membrane Hydrochloric acid Continuous dialyzer. |
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