Extraction of platinum(IV) from hydrochloric acid solutions by amine alamine 304 in xylene. Estimation of the interaction coefficient between PtCl62- and H+

被引：54

作者：

Alguacil, FJ ^{[1
]}

Cobo, A ^{[1
]}

Coedo, AG ^{[1
]}

Dorado, MT ^{[1
]}

Sastre, A ^{[1
]}

机构：

[1] ETSEIB,DEPT ENGN QUIM,BARCELONA 08028,SPAIN

来源：

HYDROMETALLURGY | 1997年 / 44卷 / 1-2期

关键词：

D O I：

10.1016/S0304-386X(96)00047-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The extraction of Pt(IV) by Alamine 304 has been studied measuring the percentage of metal extraction as a function of different amine and metal concentrations and aqueous ionic strengths. Results indicated the formation of the species (R(3)NH(+))(2)PtCl62- in the organic phase, the extraction reaction is exothermic (Delta H degrees = -1.9 kJ/mol), The formation constants vary linearly with the ionic strength; the interaction coefficient between PtCl62- and H+ was estimated using the Specific Interaction Theory, Further studies on the extraction of hydrochloric acid by the amine Alamine 304 are also presented.

引用

页码：203 / 212

页数：10

共 29 条

[1]

AGUILAR M, 1986, CHEM SCRIPTA, V26, P635

[2] KINETIC-STUDIES OF THE SOLVENT-EXTRACTION OF PLATINUM(II) WITH DIPHENYLTHIOUREA [J].