Documents disponibles écrits par cet auteur

Microemulsion extraction of gold(III) from hydrochloric acid medium using ionic liquid as surfactant and extractant / Yu Tong in Industrial & engineering chemistry research, Vol. 51 N° 50 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16438–16443 Titre : Microemulsion extraction of gold(III) from hydrochloric acid medium using ionic liquid as surfactant and extractant Type de document : texte imprimé Auteurs : Yu Tong, Auteur ; Lu Han, Auteur ; Yanzhao Yang, Auteur Année de publication : 2013 Article en page(s) : pp. 16438–16443 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Microemulsion  Ionic  Liquid Résumé : A microemulsion consisting of cyclohexane, n-hexanol, hydrochloric acid solution, and the ionic liquid 1-n-tetradecyl-3-methylimidazolium bromide ([C14mim]Br) was investigated for Au(III) extraction. In the extraction system, [C14mim]Br bears double functions of surfactant and extractant. The anion-exchange mechanism of Au(III) extraction by [C14mim]Br was confirmed by the method of continuous variation and infrared spectrum analysis. The effects of extraction time and various material concentrations were examined for Au(III) extraction. Under optimum conditions, almost all the Au(III) in hydrochloric acid solution was extracted to the microemulsion phase, which also has high selectivity for Au(III) over some metals (Cu(II), Cd(II), Co(II), Ni(II), Sb(III), Fe(III), Al(III), and Sn(IV)). Therefore, the extraction of Au(III) by the [C14mim]Br/cyclohexane/n-hexanol/HCl microemulsion is an efficient and effective approach with high selectivity. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301644t [article] Microemulsion extraction of gold(III) from hydrochloric acid medium using ionic liquid as surfactant and extractant [texte imprimé] / Yu Tong, Auteur ; Lu Han, Auteur ; Yanzhao Yang, Auteur . - 2013 . - pp. 16438–16443. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16438–16443 Mots-clés : Microemulsion  Ionic  Liquid Résumé : A microemulsion consisting of cyclohexane, n-hexanol, hydrochloric acid solution, and the ionic liquid 1-n-tetradecyl-3-methylimidazolium bromide ([C14mim]Br) was investigated for Au(III) extraction. In the extraction system, [C14mim]Br bears double functions of surfactant and extractant. The anion-exchange mechanism of Au(III) extraction by [C14mim]Br was confirmed by the method of continuous variation and infrared spectrum analysis. The effects of extraction time and various material concentrations were examined for Au(III) extraction. Under optimum conditions, almost all the Au(III) in hydrochloric acid solution was extracted to the microemulsion phase, which also has high selectivity for Au(III) over some metals (Cu(II), Cd(II), Co(II), Ni(II), Sb(III), Fe(III), Al(III), and Sn(IV)). Therefore, the extraction of Au(III) by the [C14mim]Br/cyclohexane/n-hexanol/HCl microemulsion is an efficient and effective approach with high selectivity. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie301644t