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Transport of palladium(II) through hollow fiber supported liquid membrane facilitated by nonylthiourea
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Chemistry.
KTH, Superseded Departments, Materials Science and Engineering.
2004 (English)In: Journal of Membrane Science, ISSN 0376-7388, E-ISSN 1873-3123, Vol. 241, no 2, 289-295 p.Article in journal (Refereed) Published
Abstract [en]

The facilitated transport of Pd(II) from chloride media has been investigated through a hollow-fiber supported liquid membrane using nonylthiourea (NTH) as a carrier. The influence of the chemical conditions on the permeability of Pd(II) is reported. A model is presented that describes the transport mechanism, consisting of diffusion through a feed aqueous diffusion layer, a fast interfacial chemical reaction, and diffusion of carrier and its metal complex through the organic membrane. The diffusion resistances through organic membrane (Delta(org)) and through aqueous layer (Delta(aq)), respectively, have been calculated from the proposed model. The permeability of Pd(II) seems to be governed by the diffusion of Pd(II) species through the hollow fiber supported liquid membrane with PdCl2(NTH)(2) as a predominant carrier and PdCl2(NTH)to a lesser extent, though both have similar diffusion coefficients.

Place, publisher, year, edition, pages
2004. Vol. 241, no 2, 289-295 p.
Keyword [en]
palladium(II) transport, supported liquid membrane, nonylthiourea, sulfur-containing reagents, mass-transfer, thiourea derivatives, mobile carrier, separation, acid, platinum(iv), extraction, mechanism, gold(iii)
National Category
Materials Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-23683DOI: 10.1016/j.memsci.2004.05.020ISI: 000223577000013Scopus ID: 2-s2.0-4043173506OAI: oai:DiVA.org:kth-23683DiVA: diva2:342382
Note
QC 20100525 QC 20110922Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Selective Separation of Metal Ions by Solvent Extraction, Liquid Membranes and Magnetic Nanoparticles
Open this publication in new window or tab >>Selective Separation of Metal Ions by Solvent Extraction, Liquid Membranes and Magnetic Nanoparticles
2006 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2006. xvi, 50 p.
Keyword
solvent extraction, facilitated transport, Pt(IV), Pd(II), Ph(III), permeation medelling, thermodynamic modelling
National Category
Materials Chemistry
Identifiers
urn:nbn:se:kth:diva-3871 (URN)91-7178-218-8 (ISBN)
Public defence
2006-03-17, Salongen, KTHB, Osquars backe 31, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20100924Available from: 2006-03-08 Created: 2006-03-08 Last updated: 2010-09-24Bibliographically approved

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