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Recycling of spent nitric acid solution from electrodialysis by diffusion dialysis
Lan, Shengjie1,2; Wen, Xianming1; Zhu, Zenghu1; Shao, Fei1,2; Zhu, Chaoliang1,2
2011-09-01
Source PublicationDESALINATION
Volume278Issue:1-3Pages:227-230
SubtypeArticle
AbstractLaboratory study of recovering HNO(3) solution from acidic effluents discharged by an electrodialysis plant for extracting lithium from concentrated brine at East Taijinar Salt Lake, China, was conducted using diffusion dialysis (DD) with homogenous anion exchange membrane (DF120). The effects of concentrations of nitric acid and metal ions (including Li, Na, K, Mg, Ca) and water to spent acid flow rate (W/A) ratio on the performance of diffusion dialysis were investigated. Results indicated that acid recovery increased with the concentration of the feed. The membrane showed moderate monovalent permselectivity: divalent cations were more effectively retained as opposed to monovalent cations. The selectivity between metal and hydrogen ions were impaired by increasing W/A ratio. The acid recovery reached its maximum at 3.0 mol/L H(+), demonstrating that the efficiency at feeding concentrations above 3.0 mol/L would be low for the DF120 membrane. The increase of salt content in the spent acid to 3.0 mol/L and above conceivably impaired the selectivity of the membrane.
KeywordDiffusion Dialysis Nitric Acid Recovery Homogenous Anion Exchange Membrane Salt Lake Brine
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
WOS KeywordMEMBRANE NEOSEPTA-AFN ; ANION-EXCHANGE MEMBRANES ; SULFURIC-ACID ; RECOVERY ; SEPARATION ; TRANSPORT ; MIXTURE ; SERIES ; H2SO4
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000295061100031
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/5970
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Inst Salt Lakes, Xining 810008, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100086, Peoples R China
Recommended Citation
GB/T 7714
Lan, Shengjie,Wen, Xianming,Zhu, Zenghu,et al. Recycling of spent nitric acid solution from electrodialysis by diffusion dialysis[J]. DESALINATION,2011,278(1-3):227-230.
APA Lan, Shengjie,Wen, Xianming,Zhu, Zenghu,Shao, Fei,&Zhu, Chaoliang.(2011).Recycling of spent nitric acid solution from electrodialysis by diffusion dialysis.DESALINATION,278(1-3),227-230.
MLA Lan, Shengjie,et al."Recycling of spent nitric acid solution from electrodialysis by diffusion dialysis".DESALINATION 278.1-3(2011):227-230.
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