TTPIXE analysis of phosphate rocks and phosphogypsum

Autor: Julia Martín, Rafael García-Tenorio, Juan Pedro Bolívar, Miguel Ángel Respaldiza, M.A Ontalba, M. F. da Silva
Rok vydání: 1999
Předmět:
Zdroj: Applied Radiation and Isotopes. 50:445-449
ISSN: 0969-8043
DOI: 10.1016/s0969-8043(98)00079-7
Popis: The 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 Tecnologico e Nuclear” (ITN), Sacavem (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.
Databáze: OpenAIRE