SciELO - Scientific Electronic Library Online

 
vol.81 número186Revalidation of Elder's equation for accurate measurements of dispersion coefficients in natural flows índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


DYNA

versão impressa ISSN 0012-7353

Resumo

BALLADARES, Eduardo et al. Chemical-mineralogical characterization of copper smelting flue dust. Dyna rev.fac.nac.minas [online]. 2014, vol.81, n.186, pp.11-18. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v81n186.32852.

In pyrometallurgical processing of copper, 5-10 wt-% of concentrates fed to smelting furnaces are released in the form of flue dust, which contains most of the impurities that pollute products and effluents as well as very significant amounts of copper. Consequently, these dusts cannot be disposed of as an industrial waste and must be treated to recover the copper in order to assure efficient processing. Better process designs needs precise dust characterization. The present study is aimed at generating useful physical, chemical and morphological information of copper smelting flue dust for samples from the gas handling system of a flash smelting furnace. The analyses showed that copper and iron are mainly found in water-soluble phases like chalcantite and chalcocyanite; the water-insoluble fraction contains largely hematite and magnetite; the presence of delafossite is likely. Part of the copper detected in the insoluble fraction is also associated to iron in form of spinel.

Palavras-chave : flue dust; characterization; copper smelting dust.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )