Publication Type Journal Article
Title Liquid-Liquid Extraction of Platinum from Chloride Media by N,N -Dimethyl-N,N -Dicyclohexyltetradecylmalonamide
Authors Maria Clara Costa Ana Assuncao Ana M. Rosa da Costa Carlos Nogueira A. P. P. Paiva
Groups
Journal SOLVENT EXTRACTION AND ION EXCHANGE
Year 2013
Month January
Volume 31
Number 1
Pages 12-23
Abstract Liquid-liquid extraction of platinum(IV) from chloride media was carried out using N,N -dimethyl-N,N -dicyclohexyltetradecylmalonamide (DMDCHTDMA) in 1,2-dichloroethane. Platinum can be effectively extracted by DMDCHTDMA without addition of tin(II) chloride, since extraction percentages (\%E) of 88\% and 99\% have been achieved from 6 M and 8 M HCl, respectively. Moreover, platinum can be successfully stripped through a simple contact with a 1 M HCl solution. The effect of some experimental parameters such as equilibration time, diluent, extractant and HCl concentrations was systematically investigated. The loading capacity of DMDCHTDMA was also evaluated. Data obtained from successive extraction-stripping cycles suggest a good stability pattern of DMDCHTDMA. Preliminary extraction data achieved with single metal ion solutions pointed out to a possible separation of platinum(IV) from palladium(II).
DOI http://dx.doi.org/10.1080/07366299.2012.700588
ISBN
Publisher
Book Title
ISSN 0736-6299
EISSN
Conference Name
Bibtex ID ISI:000312186700002
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