The goal of this research was to investigate the feasibility of removing samarium and neodymium ions from solid matrix using Cyanex 921 in supercritical CO2. The effect of various parameters such as pressure, temperature, extraction time, and stoichiometry of the complexation reaction was studied and optimized. It was found that optimal parameters are, respectively, 9 and 11 MPa, 45°C, 30 min, and 1: 3 (metal: ligand) for both samarium and neodymium. The conditional formation constant for the complexation reaction of samarium and neodymium with Cyanex 921 in the supercritical fluid phase was calculated as log K d = 1.51 and log K d = 1.08, respectively.
Russian Journal of Applied Chemistry – Springer Journals
Published: Apr 20, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud