TTPIXE analysis of phosphate rocks and phosphogypsum
1999; Elsevier BV; Volume: 50; Issue: 2 Linguagem: Inglês
10.1016/s0969-8043(98)00079-7
ISSN1872-9800
AutoresJ.E. Martı́n, R. Garcı́a-Tenorio, M.Á. Respaldiza, M.Á. Ontalba, J.P. Bolı́var, M.F da Silva,
Tópico(s)Nuclear Physics and Applications
ResumoThe TTPIXE technique was used for the determination of the concentrations of major, minor and trace elements in phosphate rock and phosphogypsum samples. All the samples came from a fertilizer industry site in Huelva (SW of Spain). The analyses were done using proton beams from the 3 MV Van de Graaff accelerator of the “Instituto Tecnológico e Nuclear” (ITN), Sacavém (Portugal). The aim was to obtain data about the distribution of the different elements in the process of P2O5 production in the factory. The information obtained allowed evaluation of the effectiveness of the chemical treatment employed, and gave a detailed information about the elemental composition of phosphogypsum, the main by-product of phosphate fertilizer production. These data can be useful to define the phosphogypsum management and to evaluate its environmental impact.
Referência(s)