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Selective extraction of palladium(II) from chloride solutions with nonylthiourea dissolved in chloroform
KTH, Tidigare Institutioner (före 2005), Materialvetenskap.ORCID-id: 0000-0001-6288-7709
KTH, Tidigare Institutioner (före 2005), Kemi.
KTH, Tidigare Institutioner (före 2005), Materialvetenskap.ORCID-id: 0000-0003-4976-862X
2002 (engelsk)Inngår i: Solvent extraction and ion exchange, ISSN 0736-6299, E-ISSN 1532-2262, Vol. 20, nr 6, s. 717-733Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The extraction of Palladium(II) [Pd(II)] from hydrochloric acid solutions with nonylthiourea (NTH) dissolved in chloroform at a constant ionic strength of LOM has been studied. The extraction of Pd(II) has been investigated as a function of the concentration of the extractant, chloride ion, and proton concentrations as well as extraction temperature. The distribution data have been treated graphically and numerically. The analysis of the experimental data has shown that Pd(II) is extracted as PdCl2 . (NTH) and PdCl2 . (NTH)(2) species with the respective extraction constants of log K-11 = 5.0 +/- 0.1 and log K-12 = 9.1 +/- 0.1. The back-extraction of Pd(II) from the organic phase using different stripping reagents has been examined. The selectivity of NTH for Pd(II) against Pt(IV), Rb(III), Cu(II), Fe(III), and Zn(II) has also been investigated.

sted, utgiver, år, opplag, sider
2002. Vol. 20, nr 6, s. 717-733
Emneord [en]
liquid-liquid-extraction, solvent-extraction, hydrochloric-acid, platinum metals, noble-metals, sulfide, gold, separation, thiourea, reagents
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-22108DOI: 10.1081/sei-120016075ISI: 000179678100006Scopus ID: 2-s2.0-0036875673OAI: oai:DiVA.org:kth-22108DiVA, id: diva2:340806
Merknad
QC 20100525Tilgjengelig fra: 2010-08-10 Laget: 2010-08-10 Sist oppdatert: 2022-10-24bibliografisk kontrollert
Inngår i avhandling
1. Selective Separation of Metal Ions by Solvent Extraction, Liquid Membranes and Magnetic Nanoparticles
Åpne denne publikasjonen i ny fane eller vindu >>Selective Separation of Metal Ions by Solvent Extraction, Liquid Membranes and Magnetic Nanoparticles
2006 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Stockholm: KTH, 2006. s. xvi, 50
Emneord
solvent extraction, facilitated transport, Pt(IV), Pd(II), Ph(III), permeation medelling, thermodynamic modelling
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-3871 (URN)91-7178-281-8 (ISBN)
Disputas
2006-03-17, Salongen, KTHB, Osquars backe 31, Stockholm, 10:00
Opponent
Veileder
Merknad

QC 20100924

Tilgjengelig fra: 2006-03-08 Laget: 2006-03-08 Sist oppdatert: 2022-10-24bibliografisk kontrollert

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