NDLI: Biolixiviação em reatores para tratamento do minério de cobre proveniente da região de Carajás (PA)

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Biolixiviação em reatores para tratamento do minério de cobre proveniente da região de Carajás (PA)

Content Provider	Semantic Scholar
Author	Alves, Joner Oliveira Palmieri, Maurício César Carmo, Andre Luiz Vilaça Do Buzzi, Daniella Cardoso Ferreira, Rafael Vicente De Pádua Filho, Hélio Raymundo Ferreira Nascimento, Dryelle De Nazaré Oliveira Do
Copyright Year	2017
Abstract	The bioleaching consists of ore leaching from the oxidizing bacteria, such as Acithiobacillus ferrooxidans. This study aimed to evaluate the bioleaching process of chalcopyrite in reactors with two different ores, one sulfide and one oxidized, from the region of Carajás (PA), in Brazil. A test conducted in tanks, in batch, containing 3kg of ore per 100 days. Mineralogical characterizations were performed by XRD and chemical analysis by EDXRF. Measurement of pH and Eh were performed daily, and collected samples for determination of copper extraction, by EDXRF. The results highlighted the similar behavior of Eh and distinguished to pH, because of their composition. On the 100 day, the sulfide ore sample presented 0.74% copper extraction, but the process being still active. The oxidized ore sample presented 18.35% of extraction on the 60 day, stabilizing from then on, and the process virtually ended on the 100 day.
File Format	PDF HTM / HTML
DOI	10.5151/1516-392X-30424
Alternate Webpage(s)	https://abmproceedings.com.br/ptbr/article/download-pdf/biolixiviacao-em-reatores-para-tratamento-do-minerio-de-cobre-proveniente-da-regiao-de-carajas-pa-
Alternate Webpage(s)	https://doi.org/10.5151/1516-392X-30424
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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