2024-03-29T15:42:09Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/438312021-09-22T12:32:01Zcom_10261_66com_10261_3col_10261_319
DIGITAL.CSIC
author
Alguacil, Francisco José
author
Muñoz, José Francisco
author
Alonso Gámez, Manuel
author
Gómez Coedo, Aurora
author
Dorado López, María Teresa
author
Padilla, Isabel
2011-12-29T13:04:46Z
2011-12-29T13:04:46Z
2003
Journal of Chemical Technology and Biotechnology 78 (5) : 529–533 (2003)
http://hdl.handle.net/10261/43831
10.1002/jctb.825
1097-4660
ACORGA M5640 (hydroxy-oxime derivative) has been applied as an extraction reagent for vanadium(V) from sulfate media. The extraction system was studied as a function of contact time, temperature, aqueous pH, diluent of the organic phase, and metal and extractant concentrations. The extraction reaction is endothermic and it is dependent on the organic diluent, aqueous pH and extractant concentration. The data have been analysed numerically to determine the stoichiometry of extracted species and their equilibrium constants. It was found that vanadium was extracted into the organic phase by a complex mechanism which involves the formation of two species (VO2R and VO2R. HR, where R represents the extractant). Vanadium stripping by acidic and ammonium hydroxide solutions was also studied. Copyright © 2003 Society of Chemical Industry
eng
closedAccess
Acorga M5640
Extraction
Stripping
Vanadium
Sulfate
Ammonium hydroxide
Extraction of vanadium(V) from sulfate solutions by ACORGA M5640
artículo
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