Impregnated resins containing di-(2-ethylhexyl) thiophosphoric acid for the extraction of palladium(II). 2: Selective palladium(II) recovery from hydrochloric acid solutions

Journal Article · Mon Mar 01 00:00:00 EST 1999 · Solvent Extraction and Ion Exchange

DOI:https://doi.org/10.1080/07366299908934617· OSTI ID:343794

Rovira, M; Cortina, J L; Arnaldos, J; Sastre, A M ^[1]

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1. Univ. Politecnica de Catalunya, Barcelona (Spain). Dept. of Chemical Engineering

The extraction of Pd(II) from HCl solutions by impregnated resins containing di(2-ethylhexyl) thiophosphoric acid (DEHTPA or HL) on the Amberlite XAD2 polymeric support has been studied. Graphical and computer analysis with the program LETAGROP-DISTR demonstrated that the Pd(II) extraction can be explained by the formation of metal complexes in the resin phase having the composition PdL{sub 2}(HL){sub 2}. DEHTPA/XAD2 resins extracted Pd(II) in the presence of other metals: Pt(IV), Rh(III), Cu(II), Fe(III) as well as Zn(II). The stripping of Pd(II) loaded on the organic phase and the lifetime of the resins were also investigated.

• Sponsoring Organization: USDOE
• OSTI ID: 343794
• Journal Information: Solvent Extraction and Ion Exchange, Vol. 17, Issue 2; Other Information: PBD: Mar 1999
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
PALLADIUM
SOLVENT EXTRACTION
PHOSPHORIC ACID ESTERS
ORGANIC SULFUR COMPOUNDS
L CODES
RESINS
SORPTIVE PROPERTIES