A sorption study of Pd(II) on aminomethylphosphonic Purolite resin S-940 | Zendy

Carmen Păduraru | Zendy; Doina Bı̂lbă | Zendy; Ioan Sârghie | Zendy; Lavinia Tofan | Zendy

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A sorption study of Pd(II) on aminomethylphosphonic Purolite resin S-940

Author(s) -

Carmen Păduraru,

Doina Bı̂lbă,

Ioan Sârghie,

Lavinia Tofan

Publication year - 2005

Publication title -

journal of the serbian chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.227

H-Index - 45

eISSN - 1820-7421

pISSN - 0352-5139

DOI - 10.2298/jsc0510205p

Subject(s) - sorption , aminomethylphosphonic acid , sorbent , chemistry , adsorption , langmuir , inorganic chemistry , langmuir adsorption model , yield (engineering) , langmuir equation , nuclear chemistry , chromatography , organic chemistry , materials science , metallurgy , metabolite , biochemistry

Many methods for the preconcentration-recovery of platinic metals are based on complexing sorbents. As platinic metals have a high tendency to form com plexes, the complex-forming sorbents are particularly useful. This study concerns the sorption of Pd(II) on aminomethylphosphonic Purolite S-940 resin. In order to establish the optimum conditions of Pd(II) sorption on S-940 resin, the influence of the following experimental conditions: solution pH, Pd(II) initial concentration and temperature were studied. The yield of Pd(II) recovery was maximum in buffer solutions of pH 3–5 and decreases with increasing initial concentration of the solution. The equilibrium distribution of Pd(II) between the two phases (sorbent and solution) is described by the Langmuir model of monomolecular layer adsorption. The thermodynamic quantities characteristic for the Pd(II) sorption process suggest an affinity of the Purolite resin S-940 for Pd(II).

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