Browsing by Author "Casas de Prada, Jesús"
Now showing items 1-8 of 8
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Casas de Prada, Jesús; Martínez, J.; Moreno, L.; Vargas Valero, Tomás (1998-08)A two-dimensional (2-D) model for a heap or dump bioleaching of a copper ore containing mainly chalcocite and pyrite has been developed. The rate of the mineral sulfide dissolution was related to the rate of oxidation ...
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Sepúlveda Epple, Elizabeth Haydee (Universidad de Chile, 2011)El objetivo de este trabajo fue plantear una alternativa al proceso industrial existente, utilizando la cristalización extractiva como respuesta, proceso en el cual -gracias a la disminución de la solubilidad de la sal ...
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Casas de Prada, Jesús; Sepúlveda, Elizabeth; Bravo, Loreto; Cifuentes, Luis (Elsevier, 2012)Crystallization of sodium perrhenate (NaReO4) from aqueous solution was studied by means of laboratory scale experiments at 298 K. NaReO4 has a very high solubility in aqueous solution (>1130 g/L at 298 K) so crystallization ...
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Lagos Caris, Josué Aliro (Universidad de Chile, 2009)
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Casas de Prada, Jesús; Acuña Goycolea, P.; Crisóstomo, G.; Cifuentes, L. (PERGAMON-ELSEVIER, 2008-06)The processing of a Fe-containing anolyte produced by a copper electro winning process carried out in a reactive electro dialysis (RED) cell has been studied. The resulting anolyte was an acidic aqueous solution which ...
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Casas de Prada, Jesús; Crisóstomo, G.; Cifuentes, L. (ELSEVIER SCIENCE BV, 2005-12-30)This work presents theoretical and experimental results on the speciation of the Fe(Il)-Fe(III)-H2SO4-H2O system in concentrated solutions (up to 2.2 m H2SO4 and 1.3 m Fe). The aim was to study the chemical equilibria of ...
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Sidborn, M.; Casas de Prada, Jesús; Martínez, J.; Moreno, L. (ELSEVIER, 2003-10)A two-dimensional dynamic model for bioleaching of secondary copper minerals from a pile has been developed. In the model. aeration of the pile is considered to be due to natural convection caused by the density gradient ...
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Cifuentes, L.; García, I.; Ortiz, R.; Casas de Prada, Jesús (ELSEVIER, 2006-06-15)Two lab-scale electrohydrolysis (EH) cells have been used to study the effectiveness of this method in the recovery of sulphuric acid from copper-containing electrolytes such as those present in copper electrorefining. ...