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WATER-PERMEATION SWELLING OF EMULSION LIQUID MEMBRANE
Alternative TitleSep. Sci. Technol.
LI, WX; SHI, YJ
1993
Source PublicationSEPARATION SCIENCE AND TECHNOLOGY
ISSN0149-6395
Volume28Issue:1-3Pages:241-254
AbstractWater-permeation swelling resulting from osmotic pressure was studied both theoretically and experimentally. Flat-bed and hollow-sphere models considering the change of permeation area with agitation time were proposed. Mean rate coefficients of water-permeation swelling were obtained from the models. The so-obtained rate coefficients predict the solubility of water in the membrane containing surfactants. The model prediction fits the experimental data well. This model can be used to calculate the permeation-swelling ratio for all swelling cases, such as pure water as inner or outer aqueous phase, or two aqueous phases with different electrolyte concentration. It was found that at the late stage of swelling, the hollow-sphere model gives a better prediction. Experimental studies indicate that control of the swelling can be achieved by surfactants that have lower water solubility, such as EM-301. As for effective factors, increasing surfactant concentration resulted in an increased swelling ratio. Different carriers had different effects on the water-permeation swelling ratio, and addition of all kinds of nonphosphatic carriers to the Span-80 membrane caused severe breakage of the membrane.; Water-permeation swelling resulting from osmotic pressure was studied both theoretically and experimentally. Flat-bed and hollow-sphere models considering the change of permeation area with agitation time were proposed. Mean rate coefficients of water-permeation swelling were obtained from the models. The so-obtained rate coefficients predict the solubility of water in the membrane containing surfactants. The model prediction fits the experimental data well. This model can be used to calculate the permeation-swelling ratio for all swelling cases, such as pure water as inner or outer aqueous phase, or two aqueous phases with different electrolyte concentration. It was found that at the late stage of swelling, the hollow-sphere model gives a better prediction. Experimental studies indicate that control of the swelling can be achieved by surfactants that have lower water solubility, such as EM-301. As for effective factors, increasing surfactant concentration resulted in an increased swelling ratio. Different carriers had different effects on the water-permeation swelling ratio, and addition of all kinds of nonphosphatic carriers to the Span-80 membrane caused severe breakage of the membrane.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
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Indexed ByISTP ; SCI
Language英语
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:A1993KE07400014
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/7982
Collection研究所(批量导入)
Affiliation1.ACAD SINICA, INST CHEM MET, BEIJING 100080, PEOPLES R CHINA
2.E CHINA UNIV CHEM TECHNOL, CHEM ENGN RES CTR, SHANGHAI 200237, PEOPLES R CHINA
Recommended Citation
GB/T 7714
LI, WX,SHI, YJ. WATER-PERMEATION SWELLING OF EMULSION LIQUID MEMBRANE[J]. SEPARATION SCIENCE AND TECHNOLOGY,1993,28(1-3):241-254.
APA LI, WX,&SHI, YJ.(1993).WATER-PERMEATION SWELLING OF EMULSION LIQUID MEMBRANE.SEPARATION SCIENCE AND TECHNOLOGY,28(1-3),241-254.
MLA LI, WX,et al."WATER-PERMEATION SWELLING OF EMULSION LIQUID MEMBRANE".SEPARATION SCIENCE AND TECHNOLOGY 28.1-3(1993):241-254.
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