Publication Type Journal Article
Title Improving the selective extraction of lanthanides by using functionalised ionic liquids
Authors Leonor Maria Adelaide Cruz José M. Carretas Bernardo Monteiro Catarina Galinha Susana S. Gomes M. Fatima Araujo Isabel Paiva Joaquim Marçalo João P. Leal
Groups IOARC
Journal SEPARATION AND PURIFICATION TECHNOLOGY
Year 2020
Month April
Volume 237
Number
Pages
Abstract Four ionic liquids, tetraoctylammonium oleate - [N-8888] [OL], 1-butyl-3-methylimidazolium-di(2-ethylhexyp-oxamate - [C(4)mim] [DEHOX], tetraoctylammonium dioctyl-diglycolamate - [N-8888] [DODGA] and tetraoctylammonium di(2-ethylhexyl)-oxamate - [N-8888] [DEHOX]), were studied concerning the extraction and selective separation of lanthanides from aqueous solutions. The influence of several factors (pH, time of contact between phases, ionic strength, ionic liquid to metal ratio) were analysed. Also, back-extraction and re-use of the ionic liquids were addressed. From all the obtained results, it should be stressed that the separation achieved along the lanthanide series by the use of [N-8888] [DEHOX] was significant, with an increasing separation factor along the series and close to 80 for Yb/Ce.
DOI http://dx.doi.org/10.1016/j.seppur.2019.116354
ISBN
Publisher
Book Title
ISSN 1383-5866
EISSN 1873-3794
Conference Name
Bibtex ID ISI:000509625700057
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