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

doi:10.1007/s11426-009-0264-z

CORC > 北京大学 > 化学与分子工程学院

	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
	Huang Kun ; Chen Jing ; Zhang ChengFeng ; Li ZhiHong ; Pan QingHua ; Sun Yan ; Liu ShaoXuan ; Liu XueXin ; Li WeiHong ; Yang ZhanLan ; Weng ShiFu ; Hu TianDou ; Xu YiZhuang ; Wu JinGuang
刊名	中国科学b辑化学英文版
	2009
关键词	solvent extraction third phase super-concentrated hydrochloric acid tertiary amine platinum IN-OIL MICROEMULSIONS 3-PHASE EXTRACTION SOLVENT-EXTRACTION 3RD-PHASE FORMATION SPECTROSCOPIC RESEARCH BUTYL PHOSPHATE NITRIC-ACID FT-IR AGGREGATION WATER
DOI	10.1007/s11426-009-0264-z
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.; Chemistry, Multidisciplinary; SCI(E); EI; 1; ARTICLE; 11,SI; 1825-1834; 52
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/151255]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Huang Kun,Chen Jing,Zhang ChengFeng,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]. 中国科学b辑化学英文版,2009.
APA	Huang Kun.,Chen Jing.,Zhang ChengFeng.,Li ZhiHong.,Pan QingHua.,...&Wu JinGuang.(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.中国科学b辑化学英文版.
MLA	Huang Kun,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".中国科学b辑化学英文版 (2009).