A solvent-extraction scheme for the determination of platinum,palladium, rhodium,iridium and gold in platiniferous materials |
| |
Authors: | A Diamantatos |
| |
Institution: | Rand Refinery, Ltd., GermistonSouth Africa |
| |
Abstract: | The integrated scheme described for the determination of five noble metals, combines solvent extraction procedures with atomic absorption spectrometric finishes. It comprises an initial extraction of gold, a simultaneous extraction of platinum and palladium as iodides, and a subsequent simultaneous extraction and preconcentration of rhodium and indium as their 2-mercaptobenzothiazol? complexes. The same solvent, methyl isobutyl ketone, and the same acidity, 6 M, are used throughout the extractions. As large amounts of platinum and palladium can be extracted quantitatively as readily as small amounts, the proposed scheme is applicable to a wide range of platiniferous materials, particularly to those with extremely high Pt + Pd to Rh + Ir ratios. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|