Formation of super-concentrated hydrochloric acid in the third phase in tertiary amine N235-ptCl(6)(2-)-HCl system and its influences on the Pt microemulsion extraction
文献类型：期刊论文
| 作者 | Huang, K; Chen, J; Zhang, CF; Li, ZH; Pan, QH; Sun, Y; Liu, SX; Liu, XX ; Li, WH; Yang, ZL
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| 刊名 | SCIENCE IN CHINA SERIES B-CHEMISTRY
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| 出版日期 | 2009 |
| 卷号 | 52期号:11页码:1825-1834 |
| 关键词 | solvent extraction third phase super-concentrated hydrochloric acid tertiary amine platinum |
| 通讯作者 | [Huang Kun ; Chen Jing ; Zhang ChengFeng ; Pan QingHua ; Sun Yan ; Liu ShaoXuan ; Li WeiHong ; Yang ZhanLan ; Weng ShiFu ; Xu YiZhuang ; Wu JinGuang] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China ; [Zhang ChengFeng ; Liu XueXin] Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China ; [Li ZhiHong ; Hu TianDou] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | In this paper, we have investigated the formation of the third-phase in tertiary amine (N235)-PtCl62--HCl system and the microscopic phase structural evolution of platinum-loaded organic phases before and after the occurrence of the third-phase. The third-phase is characterized by various spectroscopic techniques, and the small angle X-ray scattering (SAXS) experiments demonstrate the appearance of nano-aggregates, i.e., water-in-oil reversed micelles, in the third phase. The experimental results indicate that (1) formation of the third phase is related to the aggregation behaviors of nano-reversed micelles in which a super-concentrated hydrochloric acid formed with the H+ to H2O molar ratio being much higher than that of the conventional 37 wt% saturated hydrochloric acid. (2) The occurrence of the super-concentrated HCl results in a great amount of H+ and Cl- ions enriched and confined within the nano-water pools of W/O reversed micelles in third phase. Therefore, the coordination behaviors of platinum complex ions in that super-concentrated hydrochloric acid are very different from their corresponding behaviors in bulk aqueous solutions. It is possible that H+ ions participate in the formation of such complexes as HmPtCl6z+ in the super-concentrated hydrochloric acid. (3) The relative contents of various HmPtCl6z+ complexes are different corresponding to the H+ ion concentrations in confined nanowater pools. The association ability of the acidified tertiary amine N235 molecules (R3NH+) with various HmPtCl6z+ complexes plays an important role in affecting the platinum extraction behaviors. |
| 学科主题 | Chemistry |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272032700013 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239540]  |
| 专题 | 高能物理研究所_多学科研究中心 中国科学院高能物理研究所 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Huang, K,Chen, J,Zhang, CF,et al. Formation of super-concentrated hydrochloric acid in the third phase in tertiary amine N235-ptCl(6)(2-)-HCl system and its influences on the Pt microemulsion extraction[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,2009,52(11):1825-1834. |
| APA | Huang, K.,Chen, J.,Zhang, CF.,Li, ZH.,Pan, QH.,...&胡天斗.(2009).Formation of super-concentrated hydrochloric acid in the third phase in tertiary amine N235-ptCl(6)(2-)-HCl system and its influences on the Pt microemulsion extraction.SCIENCE IN CHINA SERIES B-CHEMISTRY,52(11),1825-1834. |
| MLA | Huang, K,et al."Formation of super-concentrated hydrochloric acid in the third phase in tertiary amine N235-ptCl(6)(2-)-HCl system and its influences on the Pt microemulsion extraction".SCIENCE IN CHINA SERIES B-CHEMISTRY 52.11(2009):1825-1834. |
入库方式： OAI收割
来源：高能物理研究所
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