Use of water-compatible polystyrene-polyglycidol resins for the separation and recovery of dissolved precious metal salts / Yu-Lung Lam in Industrial & engineering chemistry research, Vol. 48 N° 10 (Mai 2009)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 4975–4979 Titre : Use of water-compatible polystyrene-polyglycidol resins for the separation and recovery of dissolved precious metal salts Type de document : texte imprimé Auteurs : Yu-Lung Lam, Auteur ; Die Yang, Auteur ; Chi-Yuet Chan, Auteur Année de publication : 2009 Article en page(s) : pp. 4975–4979 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Polystyrene-polyglycidol Water-compatible resins Precious metal salts Cyanide Résumé : The use of polystyrene−polyglycidol (PS/PG) water-compatible resins for the extraction of the precious metal salts gold(I) cyanide and silver(I) cyanide from aqueous phase was studied. The resins studied include polyglycidol grafted onto a polystyrene core, a thiol version of this base PS/PG resin in which the terminal hydroxyl groups are replaced with thiol groups, and a magnetic PS/PG resin. More than 99% of the gold and silver ions of the original solutions could be extracted using the resins, and reverse extraction of the loaded metal ions from the resins was performed. Thus, recycling of the resins was possible and no deterioration in extraction performance of the reused materials was observed. The attractiveness of these resins in water purification is augmented by the fact that the PS/PG resins examined can be easily synthesized from inexpensive commodity chemical starting materials. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801904h [article] Use of water-compatible polystyrene-polyglycidol resins for the separation and recovery of dissolved precious metal salts [texte imprimé] / Yu-Lung Lam, Auteur ; Die Yang, Auteur ; Chi-Yuet Chan, Auteur . - 2009 . - pp. 4975–4979. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 4975–4979 Mots-clés : Polystyrene-polyglycidol Water-compatible resins Precious metal salts Cyanide Résumé : The use of polystyrene−polyglycidol (PS/PG) water-compatible resins for the extraction of the precious metal salts gold(I) cyanide and silver(I) cyanide from aqueous phase was studied. The resins studied include polyglycidol grafted onto a polystyrene core, a thiol version of this base PS/PG resin in which the terminal hydroxyl groups are replaced with thiol groups, and a magnetic PS/PG resin. More than 99% of the gold and silver ions of the original solutions could be extracted using the resins, and reverse extraction of the loaded metal ions from the resins was performed. Thus, recycling of the resins was possible and no deterioration in extraction performance of the reused materials was observed. The attractiveness of these resins in water purification is augmented by the fact that the PS/PG resins examined can be easily synthesized from inexpensive commodity chemical starting materials. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801904h

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