Transport of palladium(II) through hollow fiber supported liquid membrane facilitated by nonylthiourea
2004 (English)In: Journal of Membrane Science, ISSN 0376-7388, Vol. 241, no 2, 289-295 p.Article in journal (Refereed) Published
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.
palladium(II) transport, supported liquid membrane, nonylthiourea, sulfur-containing reagents, mass-transfer, thiourea derivatives, mobile carrier, separation, acid, platinum(iv), extraction, mechanism, gold(iii)
IdentifiersURN: urn:nbn:se:kth:diva-23683DOI: 10.1016/j.memsci.2004.05.020ISI: 000223577000013ScopusID: 2-s2.0-4043173506OAI: oai:DiVA.org:kth-23683DiVA: diva2:342382
QC 20100525 QC 201109222010-08-102010-08-102011-09-22Bibliographically approved