Modelling of copper ion transport through supported liquid membrane containing LIX 984

Ata O. N.

HYDROMETALLURGY, cilt.77, ss.269-277, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 77
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.hydromet.2004.11.007
  • Dergi Adı: HYDROMETALLURGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.269-277
  • Anahtar Kelimeler: supported liquid membrane, copper transport, LIX 984, modelling, MASS-TRANSFER, FACILITATED TRANSPORT, PERMEATION, NICKEL
  • Atatürk Üniversitesi Adresli: Evet

Özet

The transport of copper(H) from an aqueous solution containing zinc, cadmium, nickel and cobalt through supported liquid membrane using LIX 984 dissolved in different diluents as a mobile carrier was studied. A transport rate model has been derived taking into account diffusion through an aqueous feed boundary layer, diffusion of carrier-copper complex through supported liquid membrane and diffusion through an aqueous strip boundary layer as simultaneous controlling factors. For different types of supported liquid membrane (kerosene/Teflon; n-heptane/Teflon; n-octane/Teflon; and kerosene/Durapore), the mass transfer coefficients, k(f) (in s(-1)), were calculated from the described transport rate equation to lie between 2.4 to 2.5 (.) 10(-5) whilst the membrane diffusion coefficients of the carrier-copper complex, D-R Cu, m (m(2) S-1), 2+ 2+ were 2.6 (.) 10(-10), 5.7 (.) 10-10, 1.1 (.) 10(-9), and 4 (.) 10(-10), respectively. The results showed that Cd2+, Zn2+, Co2+, and Ni2+ ions were not transported in the pH range 1-5 studied. (c) 2004 Elsevier B.V. All rights reserved.