caa a22 4500 46318789X CHVBK 20180406164859.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10973-006-8095-z doi (NATIONALLICENCE)springer-10.1007/s10973-006-8095-z Thermotribochemicaltreatment of low grade natural phosphates [Elektronische Daten] [Y. Pelovski, V. Petkova, I. Dombalov] Stability of mineral mixed fertilizers processed by effective mixing and compaction, using extrusion technology, is a subject of this study. As new products there is a need to learn the possible changes in the phase ratios and caking processes during long term storage. 7 samples with different nutrient components ratios are investigated after one year kept in a storage facility without conditioning. Applying TG-DTA, electron microscopy and X-ray diffraction methods samples are studied, recording thermal effects and mass losses, type of crystal structures and phase content in the sample. On the base of the results obtained the relationships are discussed and conclusions made about the possibility to safety storage and visible application of the new products as fertilizers in the agriculture for nut ratio of different plant. It is confirmed that the investigated samples, produced on the base of low grade phosphates are stable during long term storage and they could be successfully recommended for practical use in agriculture, using traditional or individual method of fertilization. Springer-Verlag, 2007 extruded mixed fertilizers nationallicence SEM nationallicence TG-DTA nationallicence thermal stability nationallicence X-ray diffraction studies nationallicence Pelovski Y. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Str., 1756, Sofia, Bulgaria aut Petkova V. Central Laboratory of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 107, 1113, Sofia, Bulgaria aut Dombalov I. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Str., 1756, Sofia, Bulgaria aut Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 207-212 1388-6150 88:1<207 2007 88 10973 https://doi.org/10.1007/s10973-006-8095-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8095-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pelovski Y. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Str., 1756, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Petkova V. Central Laboratory of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 107, 1113, Sofia, Bulgaria aut NATIONALLICENCE 700 1- Dombalov I. University of Chemical Technology and Metallurgy, 8 Kl. Ohridski Str., 1756, Sofia, Bulgaria aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 207-212 1388-6150 88:1<207 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer