scandium yttrium separation

The difficulties associated with the separation of the contribution of different Eu3+ species due to overlapping spectra or similar fluorescence lifetimes were addressed and mitigated by applying ...

Scandium was separated from alkali metals, alkaline earth metals Tl(I), Hg(II) and Fe(II). It was separated from Co, Ni, Pd, Mn, Cd and Zn by selective washing of the column and from other elements by selective elution in both systems. The separation of scandium from Y, La, Ce, Pr, Nd, Sm, Gd and Dy were a remarkable feature of the method.

Scandium can be obtained from the minerals thortveitite ((Sc, Y) 2 Si 2 O 7), bazzite (Be 3 (Sc, Al) 2 Si 6 O 18) and wiikite, but is usually obtained as a byproduct of refining uranium. Metallic scandium was first produced in 1937 and the first pound ( kilograms) of pure scandium was produced in 1960.

The Radiochemistry of the Rare Earths, Scandium, Yttrium, and Actinium, by Peter Cooper Stevenson and W. E. Nervik (PDF at ) More items available under broader and related terms at left. Help with reading books Report a bad link Suggest a new listing

Selective Separation of Scandium(III) and Yttrium(III) from other Rare Earth Elements using Cyanex302 as an Extractant Article in Separation Science and Technology 43(5): · March 2008 ...

article{osti_, title = {THE EXTRACTION OF THE SALICYLATES OF SCANDIUM, YTTRIUM, CERIUM, LANTHANUM, URANIUM, AND THORIUM}, author = {Sudarikov, and Zaytsev, and Puchkov, }, abstractNote = {The work is an attempt to attain ihe separation of the elements meniioned by means of the extraction taking place with complex formation.

The separation of scandium, yttrium and lanthanum was performed by high performance centrifugal partition chromatography employing the stationary phase of a heptane solution of CA12 and the mobile phase of an aqueous chloroacetate buffer. The extractability of CA12 for Sc, Y and La was different in the mobile phase with different pH.

Study on Separation of Scandium from Scandium . recovery of 55. 95% were obtained by spiral chute gravity separation—low intensity magnetic separation—table gravity separation flowsheet from the ores.

Read "Separation of scandium(III) and yttrium(III) by tris(2ethylhexyl)phosphate (TEHP), Talanta" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Scandium, yttrium, the lanthanides and the actinides . S. A. Cotton a Author affiliations a Uppingham School, Uppingham, Rutland, UK Abstract. Much important uranium chemistry is reported, often of great interest. Notable is the work of Ephritikhine and coworkers ...

The separation of scandium from wolframite (which contains % of rare earths) is given by R. 0 The salts of scandium are all colourless, the chloride and bromide corresponding in composition to Sc 2 X 2 0; the fluoride is anhydrous.

860 Short communications li, pp. 860 to 864. Pergamon Press. Printed In Northern Ireland Thinlayer chromatographic separation of scandium, yttrium, the rare earths, thorium and uraniuin(VI) (Received 17 January 1968.

Separation of scandium and rare earths by anion exchange in acetic acidHC1 mixtures. Rokuro Kuroda, Ikuko Hikawa. Journal of Chromatography A 1966 25, 408413. The separation of scandium by cation exchange in acid ammonium sulfate media. Rokuro Kuroda, Yoshihito Nakagomi, Koji Ishida.

Abstract. The analysis of scandium and yttrium in various matrices is of increasing importance in numerous fields of applications in medicine, biological sciences, technology, and in environmental problems. Details about the analytical chemistry of these elements are contained in monographs ( Wilson and Wilson, ; Crompton,...

Separation of scandium (Sc) from yttrium (Y) in aqueous chloride media was investigated by solvent extraction with bis(2,4,4trimethylpentyl)phosphinic acid (Cyanex 272). Conventional slope analysis method revealed the extraction equilibrium formulation of the metals. Sc is more strongly extracted than

Nov 30, 2011· The joint application of the ICPAES and ICPMS methods for the analysis of standard specimens of yttrium and scandium oxide is implemented. The control of the validity is accomplished by comparing the obtained results with the certified values of .

Some physicalmetallurgical properties of scandium, yttrium. Abstract. In the continuing effort to learn more about the nature of metals, the rare earth elements in particular, the. crystal structures and precision lattice parameters of these metals were investigated.

Solvent extraction of scandium from Wolframite residue ... The particular properties of scandium make it an attractive candidate for recovery by solvent extraction one of the most important processes in hydrometallurgy for the separation, purification and concentration of metal ions.

The rare earth elements (REEs) are comprised of the lanthanide elements plus scandium and yttrium, which have similar physical properties and are often found in the same ores and deposits. Specifically, REEs include the light REEs (LREEs) such as lanthanum, cerium, praseodymium, neodymium, samarium, europium, and the heavy REEs (HREEs ...

In this method, scandium is extracted in an organic solvent obtained by: mixing a scandiumcontaining aqueous solution and a trioctylphosphine oxidecontaining organic solvent; mixing the organic solvent and a stripping starting liquid containing one or more of water, hydrochloric acid, sulfuric acid, and oxalic acid; and stripping scandium from the organic solvent.

The invention is also concerned with the separation of scandium from yttrium, thorium and trivalent rare earths and with their separation from each other. Scandium occurs in various ores often together with uranium and thorium, including ionium (Th for instance, in pitchblendetype ores, and also in monazite sands together with rare earths, thorium and uranium.

Rareearth element, any member of the group of chemical elements consisting of three elements in Group 3 (scandium [Sc], yttrium [Y], and lanthanum [La]) and the first extended row of elements below the main body of the periodic table (cerium [Ce] through lutetium [Lu]).

The Chromatographic behaviour of scandium, yttrium, the rare earths, thorium and uranium(VI) in dioxanhydrochloric acid and dioxannitric acid media on a plain cellulose thin layer has been investigated.

Uses of Yttrium. It is also used as a deoxidizer for nonferrous metals such as vanadium. Yttrium is used as a catalyst in ethylene polymerization. Yttrium90, a radioactive isotope, is used in treatments for various cancers and is used in precision medical needles .