Solid-Phase extraction of Pt(IV) with Dialkyl-(hexane-1,6-diyl) phosphate modified merrifield resins from aqueous chloride media in column operations
- A series of three dialkyl phosphate resins with a Merrifield resin support was used to extract platinum from acidic media. In column operations total capacities of 85-130 mg/g were gained. The presence of palladium and rhodium results in the order: Pt(IV) > Pd(II) >> Rh(III). From a leach liquor gained from spent automotive catalysts metals forming anionic chloro complexes are co-extracted only to a small extent. However, in order to separate and enrich platinum a selective back-extraction can be done with a sodium thiocyanate solution. A second elution step with acidic thiourea leads to a mixed solution of palladium and rhodium.
| Author details: | Simone Hahn, Juliane Träger, Hans-Jürgen HoldtORCiD |
|---|---|
| DOI: | https://doi.org/10.1080/01496395.2014.968264 |
| ISSN: | 0149-6395 |
| ISSN: | 1520-5754 |
| Title of parent work (English): | Separation and purification technology |
| Publisher: | Taylor & Francis Group |
| Place of publishing: | Philadelphia |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2015 |
| Publication year: | 2015 |
| Release date: | 2017/03/27 |
| Tag: | column operation mode; phosphate; platinum; solid-phase extraction |
| Volume: | 50 |
| Issue: | 2 |
| Number of pages: | 16 |
| First page: | 191 |
| Last Page: | 206 |
| Funding institution: | Arbeitsgemeinschaft industrieller Forschungsvereinigungen "Otto von Guericke" e.V. (AiF); ReMetall Drochow GmbH |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
| Peer review: | Referiert |
