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Estudo da oxidação dos sulfetos sintéticos molibdenita (MoS2) e covelita (CuS) por Acidithiobacillus ferrooxidans via respirometria celular
(Sociedade Brasileira de Química, 2009-01-01)
This paper analyses the oxidation of covellite and molybdenite by Acidithiobacillus ferrooxidans strain LR using respirometric experiments. The results showed that both sulfides were oxidized by A. ferrooxidans, however, ...
Estudo da dissolução oxidativa microbiológica de uma complexa amostra mineral contendo pirita (FeS2), pirrotita (Fe 1-XS) e molibdenita (MoS2)
(2007-09-01)
This work aims to study the oxidation of a complex molybdenite mineral which contains pyrite and pyrrotite, by Acidithiobacillus ferrooxidans. This study was performed by respirometric essays and bioleaching in shake flasks. ...
Linking the timing of disseminated granite-hosted gold-rich deposits to paleoproterozoic felsic magmatism at alta floresta gold province, Amazon Craton, Brazil: Insights from pyrite and molybdenite Re-Os geochronology
(2017-12-01)
The Alta Floresta gold province consists of Paleoproterozoic (2.0-1.75 Ga) plutonic-volcanic sequences that originated from successive magmatic arcs accreted to the central Amazon tectonic province in the southwestern ...
Cinética de tostación de concentrados de baja ley de molibdenitaKinetics roasting low grade concentrates molybdenite
(Universidad Nacional de Colombia, 2013-10)
El molibdeno es un metal atractivo para la fabricación de aceros y fundiciones debido a que promueve un marcado endurecimiento, aumentando la resistencia mecánica cuando la aleación se somete a enfriamientos controlados ...
Geology and Geochronology of the Miocene Rio Blanco Porphyry Cu-Mo Deposit, Northern Peru
(Society of Economic GeologistsUS, 2022-08)
The Rio Blanco porphyry Cu-Mo deposit occurs at the north end of the Miocene metallogenic belt of northern Peru. It has a thick supergene enrichment blanket; while normal for hyperarid Chile, this is unusual in mountainous, ...
Biodepression of pyrite using Acidithiobacillus ferrooxidans in seawater
(Elsevier, 2018)
In Cu-Mo deposits it is usual to find considerable amounts of pyrite (FeS2). When processing this kind of ore by flotation, pyrite is rejected using lime to increase the pH to alkaline conditions (pH similar to 10-12). In ...
Extraccionde mo (vi) con aminas terciarias en un reactor de membranas liquidas de soporte solido
(Sociedad Chilena de Quimica, 2001)
This communication describes the application of a hollow-fiber-type solid supported liquid membrane technique to the study of recovery and enrichment of molybdenum with Alamine 336 (a long chain tertiary amine) from acid ...
Geological and SHRIMP II U-Pb constraints on the age and origin of the Breves Cu-Au-(W-Bi-Sn) deposit, Carajis, Brazil
(Springer-verlagNew YorkEUA, 2004)
Neoarchean And Paleoproterozoic Iron Oxide-copper-gold Events At The Sossego Deposit, Carajas Province, Brazil: Re-os And U-pb Geochronological Evidence
(SOC ECONOMIC GEOLOGISTS, INCLITTLETON, 2015)