Author
Stephen. Foti
Bio: Stephen. Foti is an academic researcher. The author has contributed to research in topics: Ion exchange & Metal ions in aqueous solution. The author has an hindex of 1, co-authored 1 publications receiving 87 citations.
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139 citations
TL;DR: The design and synthesis of a new "stereoscopic" 2D super-microporous phosphazene-based covalent organic framework (MPCOF) is reported by using hexachorocyclotriphosphazene (a P-containing monomer in a C3-like spatial configuration) and p-phenylenediamine (a linker).
135 citations
104 citations
87 citations
TL;DR: In this paper, the adsorption of rare earths, yttrium, and scandium from nitric acid--methanol solutions was studied using strongly basic anion exchange resins.
Abstract: The adsorption of the rare earths, yttrium, and scandium from nitric acid--methanol solutions was studied using strongly basic anion exchange resins. Adsorption measurements were made at room temperature using the column elution technique and employing emission spectrographic analysis. Distribution coefficients were a function of both the volume percentage of alcohol and of the nitric acid concentration. The rare earths were eluted from a column in order of decreasing atomic number with little individual than terbium had relatively large separation factors. Yttrium behaved like lutetium, while scandium was not adsorbed to an appreciable extent. Application of the system for macro separations was demonstrated in the preparation of extremely pure rare earths and for fractionation of crude rare earth mixtures. Finally, the simplicity of operation is attractive for analytical separation of trace impurities.
82 citations