TY  - JOUR
A1  - Hahn, Simone
A1  - Träger, Juliane
A1  - Holdt, Hans-Jürgen
T1  - Solid-Phase extraction of Pt(IV) with Dialkyl-(hexane-1,6-diyl) phosphate modified merrifield resins from aqueous chloride media in column operations
JF  - Separation and purification technology
N2  - 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.
KW  - platinum
KW  - column operation mode
KW  - phosphate
KW  - solid-phase extraction
Y1  - 2015
U6  - https://doi.org/10.1080/01496395.2014.968264
SN  - 0149-6395
SN  - 1520-5754
VL  - 50
IS  - 2
SP  - 191
EP  - 206
PB  - Taylor & Francis Group
CY  - Philadelphia
ER  -