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Listar por autor "Romero Aleta, Rafael"
Mostrando ítems 1-20 de 25
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Artículo
A new thiosalt depuration bioprocess for water- recycling in metallic sulphide mineral processing
Mazuelos Rojas, Alfonso; Iglesias González, María Nieves; Montes Rosúa, Cristina; Lorenzo Tallafigo, Juan; Romero Aleta, Rafael; Carranza Mora, Francisco (Elsevier, 2019-11)Economic and environmental imperatives force the metallic sulphide processing industry to re-use liquors that normally ...
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Artículo
A novel hydrometallurgical treatment for the recovery of copper, zinc, lead and silver from bulk concentrates
Lorenzo Tallafigo, Juan; Romero Aleta, Rafael; Iglesias González, María Nieves; Mazuelos Rojas, Alfonso; Romero Aleta, Rafael; Carranza Mora, Francisco (Elsevier, 2021-03)Nowadays sulphide ores exploitation is undergoing some troubles, which are hindering the treatment through traditional ...
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Artículo
An alternative approach to recover lead, silver and gold from black gossan (polymetallic ore). Study of biological oxidation and lead recovery stages
Lorenzo Tallafigo, Juan; Iglesias González, María Nieves; Mazuelos Rojas, Alfonso; Romero Aleta, Rafael; Carranza Mora, Francisco (Elsevier, 2019-01)A novel procedure to recover lead, silver and gold from polymetallic sulphide ores, cleaner than the traditional ...
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Artículo
Aplicación del proceso brisa al tratamiento de menas de cobre conteniendo atacamita
Mazuelos Rojas, Alfonso; Romero Aleta, Rafael; Carranza Mora, Francisco (2003) -
Artículo
Biorecovery of copper from converter slags: Slags characterization and exploratory ferric leaching tests
Carranza Mora, Francisco; Mazuelos Rojas, Alfonso; Iglesias González, María Nieves; Romero Aleta, Rafael; Forcat, O. (HYDRD, 2009-06)This paper studies the ferric sulphate leaching of converter slag (9% Cu) in order to recover Cu through a process in which ...
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Ponencia
Caracterización de las cenizas de piritas de suroeste español como posible mena de Cu, Zn, Ag, y Au
Romero Aleta, Rafael; Díaz Ojeda, Emilio; Carranza Mora, Francisco (I Congreso Nacional Cuenca Minera de Riotinto, 1988) -
Artículo
Causes of inhibition of bioleaching by Cu are also thermodynamic
Mazuelos Rojas, Alfonso; García Tinajero, Carlos J.; Romero Aleta, Rafael; Iglesias González, María Nieves; Carranza Mora, Francisco (Wiley-Blackwell, 2019-01)BACKGROUND: Cu is an indispensable natural resource for society, as its use is widespread and essential for many technologies. ...
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Artículo
Copper recovery from chalcopyrite concentrates by the BRISA process
Romero Aleta, Rafael; Mazuelos Rojas, Alfonso; Palencia, I.; Carranza Mora, Francisco (Elsevier, 2003-07)The technical viability of the BRISA process (Biolixiviación Rápida Indirecta con Separación de Acciones: Fast Indirect ...
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Artículo
Copper recovery from unground printed circuit board by biogenic ferric at high solid/liquid ratio
Iglesias González, María Nieves; Ramírez del Amo, Pablo; Lorenzo Tallafigo, Juan; Romero García, Aurora; Mazuelos Rojas, Alfonso; Romero Aleta, Rafael; Carranza Mora, Francisco (Elsevier, 2022)In this work, the recovery of Cu from large waste printed circuit board (PCB) pieces by biogenic ferric sulphate at high ...
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Ponencia
Estimación económica global de la recuperación hidrometalúrgica de Cu, Zn, Ag y Au en cenizas de piritas
Díaz Ojeda, Emilio; Romero Aleta, Rafael; Carranza Mora, Francisco; Moraga Borrell, José María (Congreso Nacional Cuenca Minera de Riotinto, 1988) -
Ponencia
Extracción de Au y Ag a partir de cenizas de piritas mediante cianuración
Díaz Ojeda, Emilio; Carranza Mora, Francisco; Romero Aleta, Rafael (Congreso Nacional Cuenca Minera de Riotinto, 1988) -
Ponencia
Extracción de Cu y Zn en cenizas de piritas mediante lixiviación ácida
Romero Aleta, Rafael; Díaz Ojeda, Emilio; Carranza Mora, Francisco (Congreso Nacional Cuenca Minera de Riotinto, 1988) -
Artículo
Ferric iron production in packed bed bioreactors: Influence of pH, temperature, particle size, bacterial support material and type of air distributor
Mazuelos Rojas, Alfonso; Palencia, I.; Romero Aleta, Rafael; Rodriguez, G.; Carranza Mora, Francisco (Elsevier, 2001-05)The biooxidatíon of ferrous iron in solution has industrial applications in the regeneration of ferric iron as a leachíng ...
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Artículo
Ferric leaching of the sphalerite contained in a bulk concentrate: Kinetic study
Lorenzo Tallafigo, Juan; Iglesias González, María Nieves; Romero Aleta, Rafael; Mazuelos Rojas, Alfonso; Carranza Mora, Francisco (Elsevier, 2018-08)A novel process for the integral treatment of polymetallic sulphide ores is proposed. The process consists of a global ...
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Artículo
Influence of zinc on ferrous iron bio-oxidation: Biological or physical nature?
Mazuelos Rojas, Alfonso; Iglesias González, María Nieves; Romero Aleta, Rafael; Mejías, Miguel Ángel; Carranza Mora, Francisco (Elsevier, 2010-07-15)Ferrous iron bio-oxidation is negatively affected by the presence of heavy metals. Although the available information ...
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Artículo
Monitoring polythionate bio-oxidation by conductivity measurement
Montes Rosua, Cristina; Iglesias González, María Nieves; Romero Aleta, Rafael; Mazuelos Rojas, Alfonso; Carranza Mora, Francisco (Elsevier, 2016)Polythionates are formed by the incomplete oxidation of sulphide minerals in the grinding and flotation circuits, and ...
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Artículo
Operational pH in packed-bed reactors for ferrous ion bio-oxidation
Mazuelos Rojas, Alfonso; Carranza Mora, Francisco; Romero Aleta, Rafael; Iglesias González, María Nieves; Villalobo Polo, Eduardo (Elsevier, 2010-09)The flooded packed-bed bioreactor plays a major role in the field of applications of ferrous ion bio-oxidation. The pH ...
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Artículo
Oxygen solubility in copper bioleaching solutions
Mazuelos Rojas, Alfonso; García Tinajero, Carlos Jesús; Romero Aleta, Rafael; Iglesias González, María Nieves; Carranza Mora, Francisco (Elsevier, 2017-01)Oxygen is usually the limiting reagent in bio-leaching processes. For this reason, aeration is a key point to take into ...
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Artículo
Oxygen transfer in ferric iron biological production in a packed-bed reactor
Mazuelos Rojas, Alfonso; Romero Aleta, Rafael; Palencia, I.; Carranza Mora, Francisco; Borjas, F. J. (Elsevier, 2002-07)In this paper, oxygen transfer in the ferrous iron biooxidation process in a packed-bed reactor is studied. The reactor ...
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Artículo
Polyurethane foam as biomass support for removal of thiosalts from flotation process water
Mazuelos Rojas, Alfonso; Iglesias González, María Nieves; Montes Rosua, Cristina; Romero García, Aurora; Romero Aleta, Rafael; Carranza Mora, Francisco (Elsevier, 2021-08-01)Water recycling is a common practice in sulphide ore processing plants by flotation. Inherent thiosalts accumulation in ...