Physicochemical properties, surface active species and formation of reverse micelles in the cyanex 923-n-heptane/cerium(iv)-h2so4 extraction system
文献类型：期刊论文
| 作者 | Wang, Weiwei1,2; Wang, Xianglan1,2; Wang, Yanliang1; Li, Deqian1; Liao, Wuping1 |
| 刊名 | Journal of chemical technology and biotechnology
 |
| 出版日期 | 2008-07-01 |
| 卷号 | 83期号:7页码:1056-1063 |
| 关键词 | Solvent extraction Physicochemical properties Interfacial phenomena Cyanex 923 Cerium(iv) H2so4 |
| ISSN号 | 0268-2575 |
| DOI | 10.1002/jctb.1915 |
| 通讯作者 | Li, deqian(ldq@ciac.ji.cn) |
| 英文摘要 | Background: the cyanex (r) 923 (trialkylphosphine oxides, trpo)-n-heptane/cerium(iv)-h2so4 extraction system has been investigated focusing on the physicochemical properties, surface active species and interfacial phenomena. the effects of h2so4 and ce(iv) extraction on them were considered. results: results showed that the density and refractive index reflect the mass transfer by h2so4 and ce(iv) extraction and the change of refractive index was more sensitive than density. the interfacial tension decreased on extraction of h2so4 but increased on extraction of ce(iv). the viscosity of the equilibrium organic phase increased abruptly when the extracted h2so4 concentration in the organic phase reached certain high values. the formation of reversed micelles, with mean diameter of about 10nm, at high h2so4 concentrations in the organic phase, is suggested by various measurements such as viscosity, interfacial tension and dynamic light-scattering (dls). conclusion: it is suggested that trpo-h2so4 complexes are more surface-active than trpo itself and tend to aggregate into reverse micelles by self-assembling in the organic phase but the ce(iv)-trpo complexes are neutral, less surface-active than trpo and not helpful for reverse micelle formation. (c) 2008 society of chemical industry. |
| WOS关键词 | N-BUTYL PHOSPHATE ; LIQUID-LIQUID-EXTRACTION ; INTERFACIAL ACTIVITY ; CERIUM(IV) EXTRACTION ; 3-PHASE EXTRACTION ; INORGANIC ACIDS ; TENSION ; KINETICS ; BEHAVIOR ; CHLORIDE |
| WOS研究方向 | Biotechnology & Applied Microbiology ; Chemistry ; Engineering |
| WOS类目 | Biotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical |
| 语种 | 英语 |
| WOS记录号 | WOS:000257252900014 |
| 出版者 | JOHN WILEY & SONS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2391041 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Li, Deqian |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, PR, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100039, PR, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Weiwei,Wang, Xianglan,Wang, Yanliang,et al. Physicochemical properties, surface active species and formation of reverse micelles in the cyanex 923-n-heptane/cerium(iv)-h2so4 extraction system[J]. Journal of chemical technology and biotechnology,2008,83(7):1056-1063. |
| APA | Wang, Weiwei,Wang, Xianglan,Wang, Yanliang,Li, Deqian,&Liao, Wuping.(2008).Physicochemical properties, surface active species and formation of reverse micelles in the cyanex 923-n-heptane/cerium(iv)-h2so4 extraction system.Journal of chemical technology and biotechnology,83(7),1056-1063. |
| MLA | Wang, Weiwei,et al."Physicochemical properties, surface active species and formation of reverse micelles in the cyanex 923-n-heptane/cerium(iv)-h2so4 extraction system".Journal of chemical technology and biotechnology 83.7(2008):1056-1063. |
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来源：中国科学院大学
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