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| THE KINETICS OF COBALT(II) EXTRACTION WITH EHEHPA IN HEPTANE FROM ACETATE SYSTEM USING AN IMPROVED LEWIS CELL TECHNIQUE | |
| Alternative Title | Solvent Extr. Ion Exch. |
| CHEN, CQ; ZHU, T | |
| 1994 | |
| Source Publication | SOLVENT EXTRACTION AND ION EXCHANGE
 |
| ISSN | 0736-6299 |
| Volume | 12Issue:5Pages:1013-1032 |
| Abstract | The cobalt(LI) extraction kinetics and mechanism with EHEHPA (2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester) were investigated by an improved constant interfacial area stirred cell. The effects of the buffer species, stirring rate, temperature, specific interfacial area and surfactants on the extraction rate showed that the extraction regime was dependent on the extraction conditions and the most probable reaction zone was at the liquid-liquid interface. This extraction process was reaction controlled at lower concentration of the reactants, while it was mixed chemical reaction-diffusion or diffusion controled only for higher concentration of the reactants. An interfacial extraction reaction model with diffusion was derived. The kinetics of the extraction process was simulated with this model.; The cobalt(LI) extraction kinetics and mechanism with EHEHPA (2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester) were investigated by an improved constant interfacial area stirred cell. The effects of the buffer species, stirring rate, temperature, specific interfacial area and surfactants on the extraction rate showed that the extraction regime was dependent on the extraction conditions and the most probable reaction zone was at the liquid-liquid interface. This extraction process was reaction controlled at lower concentration of the reactants, while it was mixed chemical reaction-diffusion or diffusion controled only for higher concentration of the reactants. An interfacial extraction reaction model with diffusion was derived. The kinetics of the extraction process was simulated with this model. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Multidisciplinary |
| WOS ID | WOS:A1994PL64100007 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/7994 |
| Collection | 研究所（批量导入） |
| Affiliation | ACAD SINICA, INST CHEM MET, BEIJING 100080, PEOPLES R CHINA |
| Recommended Citation GB/T 7714 | CHEN, CQ,ZHU, T. THE KINETICS OF COBALT(II) EXTRACTION WITH EHEHPA IN HEPTANE FROM ACETATE SYSTEM USING AN IMPROVED LEWIS CELL TECHNIQUE[J]. SOLVENT EXTRACTION AND ION EXCHANGE,1994,12(5):1013-1032. |
| APA | CHEN, CQ,&ZHU, T.(1994).THE KINETICS OF COBALT(II) EXTRACTION WITH EHEHPA IN HEPTANE FROM ACETATE SYSTEM USING AN IMPROVED LEWIS CELL TECHNIQUE.SOLVENT EXTRACTION AND ION EXCHANGE,12(5),1013-1032. |
| MLA | CHEN, CQ,et al."THE KINETICS OF COBALT(II) EXTRACTION WITH EHEHPA IN HEPTANE FROM ACETATE SYSTEM USING AN IMPROVED LEWIS CELL TECHNIQUE".SOLVENT EXTRACTION AND ION EXCHANGE 12.5(1994):1013-1032. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| THE KINETICS OF COBA（496KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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