Application of X-Ray-Fluorescence Spectrometry to the Analysis of Ta-Nb-Sn Slags and Associated By-Products

Abstract

This paper describes the development of an accurate, precise, and rapid analytical procedure using x-ray-fluorescence spectrometry for the determination of Nb, Ta, Mg, Al, Si, P, K, Ca, Ti, Mn, Fe, Zr, and Sn in a wide variety of materials resulting from the processing of Ta-Nb-Sn slags to produce Ta-Nb oxides. The method involves evaporation of all the liquids to dryness, a 1:8 fusion of the solid materials with a flux consisting of Na-Li tetraborate and Na2CO3, and the addition of La oxide as a heavy absorber. With the use of a computer program, residual matrix effects are corrected for by influence-factor calculations.

Investigation of Dissolution Kinetics of A Nigerian Tantalite Ore in Nitric Acid

“…However, most of the reported works are in the areas of tantalite beneficiation, geochemistry and phase characterizations [6,[9][10][11]. Nevertheless, many researchers have reported several findings in terms of chemical nature, aiming at extracting tantalum in different media.…”

Niobium and Niobium Compounds

“…The determination of niobium in raw materials is carried out by X-ray fluorescence [81][82][83]. For this purpose, test pieces in tablet form are produced by reacting the niobium-containing material with borate to produce a melt, or by compressing it with binders such as wax or boric acid.…”

Determination of niobium(V) and tantalum(V) as 4-(2-pyridylazo)resorcinol–citrate ternary complexes in geological materials by ion-interaction reversed-phase high-performance liquid chromatography

“…determine trace amounts of Nb and Ta in geological Because of the generally poor peak shapes for and other materials. These include X-ray fluoresence methods [36][37][38][39][40], the previously reported detection (XRF) [12][13][14][15][16][17][18][19][20][21], inductively coupled plasma (ICP) limits were not confirmed. mass spectrometry (MS) [11,[22][23][24][25], ICP atomic A widely used metallochromic ligand available in emission spectrometry (AES) [26][27][28][29][30][31], atomic ab-good purity and at a low price is PAR [42].…”