Alternative pretreatments for gold-bearing refractory stibnite (Contributo in volume (capitolo o saggio))

Type
Label
  • Alternative pretreatments for gold-bearing refractory stibnite (Contributo in volume (capitolo o saggio)) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Alternative label
  • S. Ubaldini, F. Vegliò, P. Fornari, R. Massidda, E. Esposito, C. Abbruzzese (2001)
    Alternative pretreatments for gold-bearing refractory stibnite
    in "Biohydrometallurgy: Fundamentals, Technology and Sustainable Development", Proceedings of the International Biohydrometallurgy Symposium, IBS 2001, Part A, 2001
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. Ubaldini, F. Vegliò, P. Fornari, R. Massidda, E. Esposito, C. Abbruzzese (literal)
Pagina inizio
  • 553 (literal)
Pagina fine
  • 560 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • \"Biohydrometallurgy: Fundamentals, Technology and Sustainable Development\", Proceedings of the International Biohydrometallurgy Symposium, IBS 2001, Part A (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Ouro Preto, Minas Gerais, Brazil, September 16-19, 2001. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • Proceedings of the International Biohydrometallurgy Symposium, IBS 2001, Part A, pp. 553-560, Edited by V.S.T. Ciminelli, O. Garcia Jr. Editors, M.C. Teixeira, R.P. de Carvalho, P.F. Pimentel Associate Editors, Elsevier 2001. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • S. Ubaldini, , P. Fornari, R. Massidda, , C. Abbruzzese, CNR-Istituto di Geologia Ambientale e Geoingegneria, Roma, Italy. F. Vegliò, E. Esposito, Università degli Studi dell'Aquila, Italy. (literal)
Titolo
  • Alternative pretreatments for gold-bearing refractory stibnite (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 0444506233 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autoriVolume
  • Edited by V.S.T. Ciminelli, O. Garcia Jr. Editors and M.C. Teixeira, R.P. de Carvalho, P.F. Pimentel as Associate Editors. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#curatoriVolume
  • Elsevier 2001 (literal)
Abstract
  • The aim of this work was to compare a chemical and a biological process as a pretreatment for gold recovery from a refractory gold-bearing stibnite. Experimental tests have been conducted at laboratory scale, utilising an ore sample with gold content of about 20 g/t Au, coming from South America. The chemical pretreatment consisted in alkaline leaching by aqueous sodium sulfide and sodium hydroxide solutions; after chemical leaching, metallic antimony was selectively recovered by electrowinning. The biochemical pretreatment has been carried out in acid environment by bacterial cultures of Thiobacillus genus. The optimisation of the parameters permitted to attain an increasing on gold recovery from 20% Au (not pretreated samples) to about 80% Au, in both processes. Two integrated process flow-sheets have been outlined. (literal)
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