Silver(I) recovery on sulfur-containing polymeric sorbents from chloride solutions
 
More details
Hide details
1
Faculty of Chemistry, Wrocław University of Science and Technology
 
 
Publication date: 2020-11-12
 
 
Corresponding author
Magdalena Pilśniak-Rabiega   

Faculty of Chemistry, Wrocław University of Science and Technology
 
 
Physicochem. Probl. Miner. Process. 2020;56(6):290-310
 
KEYWORDS
TOPICS
ABSTRACT
This work describes the preparation of functional polymers containing 2-mercapto-1-methylimidazole and guanylthiourea ligands from chemically modified vinylbenzyl chloride/divinylbenzene copolymer (VBC/DVB). The resins were used for the removal of Ag(I) from synthetic and real chloride solutions. The 2-mercapto-1-methylimidazole resin was highly selective towards Ag(I) in relation to Pb(II) from real chloride leaching solution. The resins were selective for Ag(I) from real chloride solution and they did not sorb chloride complexes of Co(II), Ni(II) and Zn(II). The sorption kinetic data were well fitted to the pseudo-first-order kinetic model. The degree of Ag(I) desorption was about 80% using 1% potassium cyanide solution in 0.5% hydrogen peroxide solution. Resins retain their capacity towards Ag(I) in five consecutive sorption/desorption cycles.
eISSN:2084-4735
ISSN:1643-1049
Journals System - logo
Scroll to top