Now showing items 1-10 of 21
Variation of Mo isotopes from molybdenite in high-temperature hydrothermal ore deposits
Measurable molybdenum isotope fractionation in molybdenites from different ore deposits through time provides insights into ore genesis and a new technique to identify open-system behavior of Re–Os in molybdenites. Molybdenite ...
KINETICS AND REACTION MECHANISMS OF HIGH-TEMPERATURE FLASH OXIDATION OF MOLYBDENITE
(MINERALS, METALS & MATERIALS SOCIETY, 2010)
MOLYBDENITE CONCENTRATE CLEANING BY COPPER SULFATION ACTIVATED BY MICROWAVE
(PERGAMON-ELSEVIER SCIENCE LTD,, 2001)
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, ...
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
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 ...
Estudo da dissolução oxidativa microbiológica de uma complexa amostra mineral contendo pirita (FeS2), pirrotita (Fe 1-XS) e molibdenita (MoS2)
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. ...
Timing and duration of hydrothermal activity at the Los Bronces porphyry cluster: an update
New geochronological data from the Los Bronces cluster of the Río Blanco-Los Bronces mega-porphyry Cu-Mo district establish a wide range of magmatism, hydrothermal alteration, and mineralization ages, both in terms of ...
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 ...
Extraction of Mo (VI) with tertiary amines in a solid-supported liquid membrane reactor
(SOCIEDAD CHILENA DE QUIMICA, 2001-06)
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 ...
Refinement of the time-space evolution of the giant Mio-Pliocene Río Blanco-Los Bronces porphyry Cu–Mo cluster, Central Chile: new U–Pb (SHRIMP II) and Re–Os geochronology and 40Ar/39Ar thermochronology data
Representing one of the largest known (estimated >5 Gt at 1 % Cu and 0.02 % Mo) porphyry system, the Río Blanco-Los Bronces deposit incorporates at least five hypabyssal intrusive and hydrothermal centres, extending ...