Abstract
AbstractThe solvent extraction of rare earths from chloride solution has been investigated using mixtures of 2‐ethylhexylphosphonic acid mono‐(2‐ethylhexyl) ester (HEHEHP, P507) and organophosphorus acids [di‐(2‐ethylhexyl)phosphoric acid (HDEHP, P204), isopropylphosphonic acid 1‐hexyl‐4‐ethyloctyl ester (HHEOIPP), bis(2,4,4‐trimethylpentyl)phosphinic acid (Cyanex 272), bis(2,4,4‐trimethylpentyl)monothiophosphinic acid (Cyanex 302), and bis(2,4,4‐trimethypentyl)dithiophosphinic acid (Cyanex 301)]. Results show that the extractability of the selected extractants for rare earths decreases in the order: HEHEHP/HDEHP > HEHEHP/Cyanex 301 > HEHEHP/HHEOIPP > HEHEHP/Cyanex 302 > HEHEHP/Cyanex 272. A possible explanation of the different extractabilities is given based on the structure of the extractants. Furthermore, the possibilities of the separation of adjacent rare earths with these mixtures were investigated according to the extractabilities; the results show the possibility of separating the rare earths. Copyright © 2006 Society of Chemical Industry
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Chemical Technology & Biotechnology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
