X-Ray Fluorescence Analytical Methodology for the Determination of Nb, Ta, Fe and Mn Extracted in Hydrometallurgic Processes

M. DEL C. RUIZ; M. RODRIGUEZ; E. PERINO; R. OLSINA

LATIN AMERICAN APPLIED RESEARCH

UNS Printing Office

Lugar: Bahía Blanca; Año: 2004 vol. 34 p. 23 - 27

0327-0793

An analytical methodology was developed for the quantification of niobium, tantalum, iron and manganese in samples of ores and solid residues coming from ore pressure leaching, using different acids. The adopted instrumental technique was X-ray fluorescence on pelleted solid samples. The analysis of the experimental data obtained by different assayed method showed that the direct technique using calibration curves built from pure oxides patterns and methods of standard addition were those giving statistically acceptable results Comparison of the analytical data obtained by application of this method to ore and leaching residue samples with those obtained by a reference method showed that the experimental results were statistically acceptable. Keywords: X-ray fluorescence determination; Niobium; Tantalum; Iron; Manganese.