Extraction of Zn(II) from aqueous hydrochloric acid solutions into Alamine 336-m-xylene systems. Modeling considerations to predict optimum operational conditions

Sayar N. A., Filiz M., Sayar A. A.

HYDROMETALLURGY, cilt.86, ss.27-36, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 86
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.hydromet.2006.10.005
  • Dergi Adı: HYDROMETALLURGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.27-36
  • Anahtar Kelimeler: solvent extraction, Zn(II), modeling, simulation and optimization of extraction operations, LIQUID-LIQUID-EXTRACTION, DI(2-ETHYLHEXYL) PHOSPHORIC-ACID, SOLVENT-EXTRACTION, SULFATE-SOLUTIONS, CHLORIDE SOLUTIONS, CARBOXYLIC-ACIDS, ZINC EXTRACTION, SEPARATION, RECOVERY, NICKEL
  • Marmara Üniversitesi Adresli: Hayır

Özet

Extraction of Zn(II) from its aqueous hydrochloric acid solutions into Alamine 336-m-xylene systems was studied. Extraction data were obtained with three different initial metal concentrations of 3, 7 and 15 g L(-1) each at aqueous phase acidic molarities of 1, 5 and 10 mol L(-1). It was observed that the increase in acidic molarity slightly increases the extractability of Zn(II). Alamine 336-m-xylene mixtures were found promising organic solvent systems for the Zn(II) extraction from aqueous media. 2-D, 3-D and 4-D mathematical model equations simulating metal extractability in terms of organic phase Alamine volume content, aqueous phase acidic molarity and initial metal concentration were developed. 4-D model equation was used to develop a performance index function in order to optimize the principal key inputs of the extraction operation. (C) 2006 Elsevier B.V. All rights reserved.