Towards an understanding of solvent extraction - electroanalytical characterization of chloride-leaching solutions

被引：1

作者：

Paiva, AP ^{[1
]}

Abrantes, LM ^{[1
]}

机构：

[1] Univ Lisbon, Fac Ciencias, Ctr Electroquim & Cinet, Dept Quim Bioquim, P-1749016 Lisbon, Portugal

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 2001年 / 370卷 / 07期

关键词：

D O I：

10.1007/s002160100856

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Solvent extraction has been employed to purify media simulating chloride-leaching solutions resulting from complex sulfide concentrate processing, and cyclic voltammetry (CV) has been chosen to characterize those hydrometallurgical aqueous phases. The possibilities of the CV technique were investigated by the evaluation of the adequacy of a specific organic extractant, triisobutylphosphine sulfide, aimed to efficiently and selectively extract silver from a complex chloride medium, additionally containing tenfold to 40-fold molar concentrations of iron, copper and lead. The influence of the oxidation state of the metallic ions present in the feed solution, namely Cu(II) and Cu(I), is considered. The possibilities of CV analysis for the characterization of stripping solutions are also illustrated.

引用

页码：883 / 886

页数：4

共 10 条

[1]

ARAUJO LV, 1994, THESIS U LISBON PORT

[2]

DUTRIZAC JE, 1993, HYDROMETALLURGY FUND, P908

[3] THERMODYNAMIC PROPERTIES OF CHLORO-COMPLEXES OF SILVER-CHLORIDE IN AQUEOUS-SOLUTION [J].