Modeling of Ce(IV) transport through a dispersion supported liquid membrane including P204 as the carrier
文献类型：SCI/SSCI论文
| 作者 | Pei L. |
| 发表日期 | 2013 |
| 关键词 | Dispersion supported liquid membrane Dispersion phase Feed phase P204 Cerium(IV) acid mono-2-ethylhexyl ester metal-ion separation rare-earth-elements solvent-extraction nickel ions copper-extraction strip dispersion waste-water removal stability |
| 英文摘要 | This paper presents a mathematical model for the transport of Ce(IV) from sulfate solutions through dispersion supported liquid membranes which contain 2-ethyl hexyl phosphoric acid-mono-2-ethyl hexyl ester (P204) as the carrier, dissolved in kerosene as the membrane solution. This process of facilitated transport, based on membrane technology, is a variation on the conventional technique of solvent extraction and may be described mathematically using Fick's second law. The equations for transport velocity are derived considering the diffusion of P204 and its metallic complexes through the liquid membrane. In this work, the system is considered to be in a transient state, and chemical reaction between Ce(IV) and the carrier takes place only at the solvent-aqueous interfaces. Modeling of concentration profiles is obtained for the Ce(IV) from which extraction velocities are predicted. The experimental and simulated Ce(IV) extractions showed similar tendencies for a high Ce(IV) concentration and acidity case. The model results indicate that the initial high concentration of Ce(IV) and acidity have detrimental effects on Ce(IV) extraction and stripping. |
| 出处 | Desalination and Water Treatment |
| 卷 | 51 |
| 期 | 10-12 |
| 页 | 2193-2201 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1944-3994 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30321]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Pei L.. Modeling of Ce(IV) transport through a dispersion supported liquid membrane including P204 as the carrier. 2013. |
入库方式： OAI收割
来源：地理科学与资源研究所
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