Biochemical and chemical events in copper solubilization from a chalcopyrite concentrate by Thiobacillus ferrooxidans in batch culture

Toro, Luigi; Cesare, Silvia Di; Paponetti, B.; Lepidi, A.

doi:10.1016/0301-7516(89)90049-5

Cited by 5 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The analytical results of some "marker species" see table 11 suggest that the whole process in orbital shaker and in the presence of 10% of concentrate can be divided into three main phases, as follows [20]: 1st phase (0 -2 days), 2nd phase (2 -5 days) and 3rd phase (5 -10 days).…”

Section: ------------------------------------------------------------mentioning

confidence: 99%

Biometallurgy for Manganese and Copper Ores

Toro

Abbruzzese²,

Vegliò

et al. 1990

Advances in Fine Particles Processing

Self Cite

View full text Add to dashboard Cite

The paper discusses the biotreatment of Italian ores of potential commercial interest, using oxidizing and reducing microorganisms in mixed and pure cultures. The study focused on copper and manganese ores.Bioleaching tests were carried out in Erlenmeyer flasks, a L.K.B. modified microfermenter and a newly designed reactor. In particular the development during the time of the chalcopyrite bioleaching of catalyzed by Thiobacillus ferrooxidans is proposed. The main biochemical and chemical reactions concerned in the production of soluble and insoluble species were investigated during the culture growth particularly the time when the principal reactions begin and their duration.Experimental runs were also performed using urea in place of ammonium sulphate.Manganese bioleaching was carried out utilizing various microrganisms coming from the natural habitat; interesting results as regards rates and yields were obtained by mixed cultures. Tests of some strains isolated from these cultures were carried out.

show abstract

Section: ------------------------------------------------------------mentioning

confidence: 99%