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Autordc.contributor.authorBasualto Flores, Carlos 
Autordc.contributor.authorMarchese, J. es_CL
Autordc.contributor.authorValenzuela Lozano, Fernando es_CL
Autordc.contributor.authorAcosta, Adolfo es_CL
Fecha ingresodc.date.accessioned2010-10-05T16:34:47Z
Fecha disponibledc.date.available2010-10-05T16:34:47Z
Fecha de publicacióndc.date.issued2003-04-10
Cita de ítemdc.identifier.citationTALANTA 59 (5): 999-1007en_US
Identificadordc.identifier.issn0039-9140
Identificadordc.identifier.urihttps://repositorio.uchile.cl/handle/2250/121057
Resumendc.description.abstractThis is a report on the extraction of molybdenum(VI) ions using a supported liquid membrane, prepared by dissolving in kerosene, the extractant Alamine 336 (a long-chain tertiary amine) employed as mobile carrier. A flat hydrophobic microporous membrane was utilised as solid support. Appropriate conditions for Mo(VI) extraction through the liquid membrane were obtained from the results of liquid-liquid extraction and stripping partition experiments. The influence of feed solution acidity, the carrier extractant concentration in the organic liquid film and the content of strip agent on the metal flux through membrane were investigated. It was established that maximal extraction of metal is achieved at a pH 2.0 if sulphuric acid is used in the feed solution and at a pH value over 11.0 if Na2CO3 is used as strip agent. Moreover, the molybdenum extraction through membrane is enhanced when a 0.02 mol 1(-1) content of the amine carrier in the organic phase is used. The present paper deals with an equilibrium investigation of the extraction of Mo(VI) by Alamine 336 and its permeation conditions through the liquid membrane, and examines a possible mechanism of extraction.en_US
Idiomadc.language.isoenen_US
Publicadordc.publisherELSEVIER SCIENCE BVen_US
Palabras clavesdc.subjectMolybdenumen_US
Títulodc.titleExtraction of molybdenum by a supported liquid membrane methoden_US
Tipo de documentodc.typeArtículo de revista


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