Solvent extraction of tervalent lanthanides with N-benzoylphenylhydroxilamine
The equilibrium extraction behavior for a series of trivalent lanthanide ions, La, Pr, Eu, Ho and Yb, using chloroform solutions containing N-benzoyl- phenylhydroxylamine ( BPHA ) , either alone or combined with 1 ,10-phenantholine ( phen ) , trioctylphosphine oxide (TOPO) or tetra-n-heptylammonium chloride (R_4NCl) was studied. The results demon strated that these lanthanides are extracted as Ln (BPHA) 3 -BPHA, or in the presence of phen, as Ln ( BPHA )3.phen , or in the presence of R4NCL, as R4N L n ( BPHA )4 . However, in the presence of TOPO no adduct formation occurs.
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| Autor principal: | |
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| Formato: | Tesis biblioteca |
| Idioma: | English |
| Publicado em: |
Arizona: The University of Arizona, Faculty of the Department of Chemistry, 1983. 52 p.
1983
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| Assuntos: | QUÍMICA, ANÁLISIS QUÍMICO, DISOLVENTE DE TRIVALENTE LANTÁNIDOS, MAG. SC. THESIS, |
| Acesso em linha: | http://repositorio.iniap.gob.ec/jspui/handle/41000/222 |
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