STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS

In recent years there has been a great demand for rare earth metals because of their unique physical and chemical properties as new constituents for electronic, optical and magnetic devices. Because oftheir extremely similar chemical and physical properties, it is very difficult to separate them. A...

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Autores principales:	BASUALTO,C, VALENZUELA,F, MOLINA,L, MUÑOZ,J. P, FUENTES,E, SAPAG,J
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2013
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000200032
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spelling	oai:scielo:S0717-970720130002000322014-09-09STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTSBASUALTO,CVALENZUELA,FMOLINA,LMUÑOZ,J. PFUENTES,ESAPAG,JIn recent years there has been a great demand for rare earth metals because of their unique physical and chemical properties as new constituents for electronic, optical and magnetic devices. Because oftheir extremely similar chemical and physical properties, it is very difficult to separate them. A study ofsolvent extraction oflighter lanthanide metal ions with a family of organophosphorus extractants, commercially known as D2EPHA, PC88A, CYANEX 272 and CYANEX 301, was made. In general it was found that praseodymium ions were extracted with all the extractants, while in decreasing order neodymium, cerium and lanthanum were extracted less efficiently. Moreover, the D2EHPA and PC88A showed higher extraction efficiencies over the whole pH range used, but they did not allow an effective separation ofREE ions. Furthermore, with CYANEX 301 some degree ofseparation ofthe metal ions was achieved, but the extraction efficiencies were comparatively lower. On the contrary, using the CYANEX 272 extractant, medium efficiencies of extraction were achieved, but with a lower ability to separate the REE ions.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.58 n.2 20132013-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000200032en10.4067/S0717-97072013000200032
institution	Scielo Chile
collection	Scielo Chile
language	English
description	In recent years there has been a great demand for rare earth metals because of their unique physical and chemical properties as new constituents for electronic, optical and magnetic devices. Because oftheir extremely similar chemical and physical properties, it is very difficult to separate them. A study ofsolvent extraction oflighter lanthanide metal ions with a family of organophosphorus extractants, commercially known as D2EPHA, PC88A, CYANEX 272 and CYANEX 301, was made. In general it was found that praseodymium ions were extracted with all the extractants, while in decreasing order neodymium, cerium and lanthanum were extracted less efficiently. Moreover, the D2EHPA and PC88A showed higher extraction efficiencies over the whole pH range used, but they did not allow an effective separation ofREE ions. Furthermore, with CYANEX 301 some degree ofseparation ofthe metal ions was achieved, but the extraction efficiencies were comparatively lower. On the contrary, using the CYANEX 272 extractant, medium efficiencies of extraction were achieved, but with a lower ability to separate the REE ions.
author	BASUALTO,C VALENZUELA,F MOLINA,L MUÑOZ,J. P FUENTES,E SAPAG,J
spellingShingle	BASUALTO,C VALENZUELA,F MOLINA,L MUÑOZ,J. P FUENTES,E SAPAG,J STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS
author_facet	BASUALTO,C VALENZUELA,F MOLINA,L MUÑOZ,J. P FUENTES,E SAPAG,J
author_sort	BASUALTO,C
title	STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS
title_short	STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS
title_full	STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS
title_fullStr	STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS
title_full_unstemmed	STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS
title_sort	study of the solvent extraction of the lighter lanthanide metal ions by means of organophosphorus extractants
publisher	Sociedad Chilena de Química
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000200032
work_keys_str_mv	AT basualtoc studyofthesolventextractionofthelighterlanthanidemetalionsbymeansoforganophosphorusextractants AT valenzuelaf studyofthesolventextractionofthelighterlanthanidemetalionsbymeansoforganophosphorusextractants AT molinal studyofthesolventextractionofthelighterlanthanidemetalionsbymeansoforganophosphorusextractants AT munozjp studyofthesolventextractionofthelighterlanthanidemetalionsbymeansoforganophosphorusextractants AT fuentese studyofthesolventextractionofthelighterlanthanidemetalionsbymeansoforganophosphorusextractants AT sapagj studyofthesolventextractionofthelighterlanthanidemetalionsbymeansoforganophosphorusextractants
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STUDY OF THE SOLVENT EXTRACTION OF THE LIGHTER LANTHANIDE METAL IONS BY MEANS OF ORGANOPHOSPHORUS EXTRACTANTS

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