Open AccessSorption of Ga (III) on Flexible Open Cell Polyurethane Foam of Polyether Type Impregnated with Tri-N-Buthyl Phospate
Author(s) -
Lavinia Tofan,
Doina Bı̂lbă,
Carmen Păduraru,
Ovidiu Toma
Publication year - 2007
Publication title -
chemistry journal of moldova
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.275
H-Index - 5
eISSN - 2345-1688
pISSN - 1857-1727
DOI - 10.19261/cjm.2007.02(1).15
Subject(s) - sorption , polyurethane , chemistry , phosphate , adsorption , langmuir , polymer chemistry , chemical engineering , chromatography , organic chemistry , engineering
The obtained results concerning the Ga (III) ion retention on flexible open cell polyurethane foam of polyether type pretreated with tri-n-butyl phosphate are presented. The influence of solution acidity, phases contact time, Ga (III) concentration and solution temperature have been investigated. The parameters of Ga (III) batch sorption have been optimized. On the basis of Langmuir isotherms, the sorption constants and the thermodynamic parameters, ∆G, ∆Η and ∆S have been calculated.