author = "Cama, J."
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Encontrado 4 documentos, página mostrada 1 de 1

Atenuación de la oxidación del lodo pirítico de la balsa de lodos de Cueva de la Mora (Almonaster, Huelva): ensayos de laboratorio Attenuation of the oxidation of pyritic sludge from the Cueva de la Mora tailings dam (Almonaster, Huelva): laboratory experiments

Description: The addition of alkaline substances is a technique commonly used to prevent acid production generated by the weathering of sulphide-rich sludge. In this work, we show the effectiveness of fly ash, a waste of coal combustion, as an acid neutralizing residue, by means of the construction of a leaching...
Language(s): Español

Chalcopyrite dissolution rate law from pH 1 to 3

Description: Chalcopyrite dissolution kinetics in the pH range of 1 to 3 were studied by means of long-term flow-through experiments to obtain a dissolution rate law which can be coupled with reactive transport models to forecast Acid Rock Drainage. In the range of conditions under study, the rate of chalcopyrit...
Language(s): Inglés

Analysis of the iron coatings formed during marcasite and arsenopyrite oxidation at neutral-alkaline conditions

Description: In order to study the nature of the precipitates formed on arsenopyrite and marcasite after reacting with neutral to alkaline solutions, a combination of techniques including Scanning Electron Microscope-Energy Dispersive Spectroscopy (SEM-EDS), X-ray Photoelectron Spectroscopy (XPS) and synchrotron...
Language(s): Inglés

Ni Enrichment and stability of Al-free garnierite solid-solutions: a thermodynamic approach

Description: Garnierites represent significant Ni ore minerals in the many Ni-laterite deposits worldwide. The occurrence of a variety of garnierite minerals with variable Ni content poses questions about the conditions of their formation. From an aqueous-solution equilibrium thermodynamic point of view, the pre...
Language(s): Inglés
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Encontrado 4 documentos, página mostrada 1 de 1

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