Removal of cadmium from phosphoric acid solution by solvent-impregnated resins (SIRs) - Sorption kinetics and equilibria studies
Küçük Resim Yok
Tarih
2003
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Taylor & Francis Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Cyanex-302 (bis [2,4,4-trimethylpentyl] monothiophosphinic acid) was impregnated into macroporous Diaion HP-10 and HP-1MG polymeric resin matrices and used as an extractant to recover cadmium from concentrated phosphoric acid. The optimum conditions for batchwise extraction of cadmium were established, and equilibrium data in the concentration range 0-200 mg/L Cd were obtained in 40% H3PO4 solution. A Langmuir adsorption isotherm gave the best fit of the adsorption equilibrium data. A preliminary kinetic study was carried out in order to elucidate the rate-controllingmechanism. The uptake of trace cadmium onto Cyanex 302 containing solvent-impregnated resins from 40% phosphoric acid appears to be particle diffusion controlled.
Açıklama
2nd Chemical Engineering Conference for Collaborative Research in the Eastern Mediterranean -- MAY 20-24, 2001 -- MIDDLE E TECH UNIV, ANKARA, TURKEY
Anahtar Kelimeler
solvent-impregnated resin, cadmium, phosphoric acid, adsorption equilibrium, ion exchange kinetics
Kaynak
Chemical Engineering Communications
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
190
Sayı
05.Aug
