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Mostrando ítems 21-30 de 38
Ponencia
Extracción de Cu y Zn en cenizas de piritas mediante lixiviación ácida
(Congreso Nacional Cuenca Minera de Riotinto, 1988)
Artículo
Oxygen solubility in copper bioleaching solutions
(Elsevier, 2017-01)
Oxygen is usually the limiting reagent in bio-leaching processes. For this reason, aeration is a key point to take into account when designing such processes, and the oxygen saturation concentration is an important variable ...
Artículo
Inhibition of bioleaching processes by organics from solvent extraction
(Elsevier, 1999-12)
The influence of the presence of an organic phase composed of 15% LIX 64 as extractant and kerosene as solvent on ferrous iron bio-oxidation has been studied. The specific bio-oxidation rate decreased as the organic ...
Artículo
Causes of inhibition of bioleaching by Cu are also thermodynamic
(Wiley-Blackwell, 2019-01)
BACKGROUND: Cu is an indispensable natural resource for society, as its use is widespread and essential for many technologies. Consequently, worldwide production is around 18×106 tn year−1, and close to 25% is produced by ...
Artículo
Recuperación de cobre en escorias mediante biolixiviación indirecta
(CSIC, 2009)
En los procesos pirometalúrgicos, parte del cobre se pierde en la escoria que se genera como residuo del proceso, pudiendo estar presente en ella, en concentraciones muy superiores a las de muchas menas. El cobre se encuentra ...
Patente
Procedimiento de biooxidación de tiosales
(Oficina Española de Patentes y Marcas , 2020-01-27)
Procedimiento de biooxidación de tiosales.La presente invención se refiere a un procedimiento para la eliminación de tiosales en aguas de procesos como las de concentración de menas de sulfuros metálicos mediante molienda ...
Artículo
Ferric leaching of the sphalerite contained in a bulk concentrate: Kinetic study
(Elsevier, 2018-08)
A novel process for the integral treatment of polymetallic sulphide ores is proposed. The process consists of a global flotation, two stages of ferric leaching, the first stage dissolves the sphalerite and the rest of ...
Tesis Doctoral
Ponencia
Oxidación biológica en continuo de disoluciones de ion ferroso. Aguas de mina
(Congreso Nacional Cuenca Minera de Riotinto, 1988)
Artículo
Operational pH in packed-bed reactors for ferrous ion bio-oxidation
(Elsevier, 2010-09)
The flooded packed-bed bioreactor plays a major role in the field of applications of ferrous ion bio-oxidation. The pH is an important variable in the control of this type of reactor, upon which the functionality of biofilm ...