SciELO - Scientific Electronic Library Online

 
vol.50 número4CHEMICAL PROFILES IN LAKE SEDIMENTS IN LAGUNA CHICA DE SAN PEDRO (BIO-BIO REGION, CHILE)REGIO AND STEREOSELECTIVE HYDROXYLATION OF A-AGAROFURAN BY BIOTRANSFORMATION OF RHIZOPUS NIGRICANS índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Journal of the Chilean Chemical Society

versão On-line ISSN 0717-9707

Resumo

VALENZUELA, FERNANDO et al. Zn(II) AND Cu(II) UPTAKE FROM ACID SOLUTIONS WITH MICROCAPSULES CONTAINING A NON-SPECIFIC ALKYL PHOSPHONIC EXTRACTANT. J. Chil. Chem. Soc. [online]. 2005, vol.50, n.4, pp.711-714. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072005000400011.

It is studied the uptake of Zn(II) and Cu(II) from acid aqueous solutions using microcapsules containing 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester, a non-specific extractant, as an alternative method for metals separation in place of current techniques as ion-exchange solid resins or solvent extraction. The microcapsules employed in this study were prepared by an in situ radical polimerization method. The amount of extractant held within each microcapsule was determined by potentiometric titration. Many experimental tests were carried out to measure the hydrometallurgical capacity of the microcapsules to remove these metallic ions from the aqueous solutions

Palavras-chave : Copper; Zinc; Extractant; Hydrometallurgy; Microcapsules.

        · texto em Inglês

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons