Effect of high-energy milling and thermal treatment on the solid-phase reactions in apatite–ammonium sulphate system
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- 作者：Bilyana Kostova (1)
Vilma Petkova (1) (2) - 关键词：Phosphorite ; Waste ammonium suphate ; High ; energy milling ; Thermal decomposition
- 刊名：Journal of Thermal Analysis and Calorimetry
- 出版年：2014
- 出版时间：May 2014
- 年：2014
- 卷：116
- 期：2
- 页码：737-746
- 全文大小：
- 参考文献：1. Pelovski Y, Petkova V, Dombalov I. Thermotribochemical treatment of low grade natural phosphates. J Therm Anal Cal. 2007;88:207-2. CrossRef
2. Chaikina MV. Mechanochemistry of natural and synthetic apatites. In: Avvakumov EG, editors. Novosibirsk, Publishing house of SB RAS, Branch “GEO- 2002, p. 11-5; 105-07; 114-15; 139.
3. Wieczorek-Ciurowa Kr, Gamrat K. Mechanochemical syntheses as an example of green processes. J Therm Anal Calorim. 2007;88:213-. CrossRef
4. Petkova V, Pelovski Y, Dombalov I, Tonsuaadu K. Thermochemical investigations of natural phosphate with ammonium sulphate additive. J Therm Anal Cal. 2005;80:701-. CrossRef
5. Yaneva V, Petrov O, Petkova V. Structural and spectroscopic studies of the Nanosize Appatite (Syrian). Mat Res Bull. 2009;44:693-. CrossRef
6. Ivanova V, Petkova V, Pelovski Y. Thermal analysis of new soil sorption regulators. J Therm Anal Cal. 2003;74:387-4. CrossRef
7. Petkova V, Serafimova E, Petrova N, Pelovski Y. Thermochemistry of triboactivated natural and NH4-exchanged Clinoptilolite mixed with Tunisian Apatite. J Therm Anal Cal. 2011;105(2):535-4. CrossRef
8. Petrova N, Petkova V. Structural changes in the system natural apatite - NH(4) clinoptilolite during triboactivation. Bulg Chem Commun. 2011;43(2):301-.
9. Arasheva M, Dombalov Jv. Investigation on thermal stability and phase transformations in the system Marocco phosphorite - (NH4)3H(SO4)2 - NH4HSO4. J Therm Anal. 1995;43:359-8. CrossRef
10. Koleva V, Petkova V. IR spectroscopic study of high energy activated Tunisian phosphorite. Vib Spectrosc. 2012;58:125-2. CrossRef
11. Petkova V. Investigation of Investigation of the thermal decomposition of triboactivated samples of ammonium sulphate. Int J Bal Trib Assoc. 2004;10(3):344-4.
12. Petkova V, Pelovski Y, Hristova V. Thermal analysis for identification of E-beam nanosize Ammonium Sulfate. J Therm Anal Cal. 2005;82:813-. CrossRef
13. Pelovski Y, Petkova V, Dombalov I. Thermal analysis of mechanoactivated mixtures of tunisia phosphorite and ammonium sulfate. J Therm Anal Cal. 2003;72:967-0. CrossRef
14. Petkova V, Yaneva V. The effect of mechano-chemical activation on the chemical activity, structural and thermal properties of carbonate substituted apatite from Syria. Part I. Chemical, structural, and spectroscopic investigations. J Environ Prot Ecol. 2012;13(2A):979-4.
15. T?nsuaadu K, Kaljuvee T, Petkova V, Traksmaa R, Bender V, Kirsim?e K. Impact of mechanical activation on physical and chemical properties of phosphorite concentrates. Int J Min Pro. 2011;100(100):104-. CrossRef
16. Petkova V, Pelovski Y, Dombalov I, Kostadinova P. Influence of triboactivation conditions on the synthesis in natural phosphate. Ammonium sulphate system. J Therm Anal Cal. 2005;80:709-4. CrossRef
17. ?ulcová P. Thermal stability and colour properties of new pigments based on BiREO3. J Therm Anal Calorim. 2012;109:639-2. CrossRef
18. ?ulcová P, Ve?e?a J, Strnadlová L. Study of doped CeO2 prepared by different synthesis. J Therm Anal Calorim. 2012;108(2):519-3. CrossRef
19. T?nsuaadu K, Gross KA, Plūduma L, Veiderma M. A review on the thermal stability of calcium apatites. J Therm Anal Calorim. 2012;110(2):647-9. CrossRef
20. Jebri S, Boughzala H, Bechrifa A, Jemal M. Structural analysis and thermochemistry of “A-type phosphostrontium carbonate hydroxyapatites. J Therm Anal Calorim. 2012;107(3):963-2. CrossRef
21. Kostova B, Petrova N, Petkova V. The high energy milling effect on position of CO3-ions in the structure of sedimentary apatite. Bul Chem Commun. 2013;45(4):601-.
22. Gorodylova N, Dohnalová Z, ?ulcová P. Effect of the synthesis conditions on the formation of MgSrP2O7 and its characterisation for pigmentary application. J Therm Anal. 2013;113(1):147-5. CrossRef
23. Larson PR, Madden AS, Tas A. Cuneyt, non-stirred synthesis of Na- and Mg-doped, carbonated apatitic calcium phosphate. Ceram Int. 2013;39:1485-3. CrossRef
24. Boldyrev BB. Mechanochemistry of inorganic solids. Proc Indian Natl Sci Acad. 1986;52A:400-7.
25. Balaz P. Mechanochemistry in nanoscience and minerals engineering. Springer-Verlag Berlin Heidelberg, ISBN: 978-3-540-74854-0 e-ISBN: 978-3-540-74855-7, 2008.
26. Balá? P, Achimovi?ová M, Balá? M, Billik P, Cherkezova-Zheleva Z, Criado JM, Francesco D, Dutková E, Gaffet E, Gotor FJ, Kumar R, Mitov I, Rojac T, Senna M, Streletskii A, Wieczorek-Ciurowa K, Hallmarks of mechanochemistry: from nanoparticles to technology. Chem Soc Rev. 2013;42:7571-37. CrossRef - 作者单位：Bilyana Kostova (1)
Vilma Petkova (1) (2)
1. Department Natural Sciences, New Bulgarian University, 21 Montevideo Str, 1618, Sofia, Bulgaria
2. Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bldg.107, 1113, Sofia, Bulgaria - ISSN：1572-8943
文摘
The phosphorous fertilizers are a product of natural sedimentary phosphorite ores. Using this raw material to produce phosphoric acid and classic phosphorous fertilizers has generated well-known ecological problems. A new and perspective way to use the same materials is creating a new type of time-delayed fertilizers applying high-energy milling (HEM) activation method. The impact of the mechanical forces over the solids is mostly revealed through the changes of the quantities being related to the energetic stability and reactivity of the solid phase. The aim of this work is to report the results from the investigation on the chemical and thermal reactions in composites of natural apatite , which are HEM activated for different times and thermally treated, (from Tunisia) and ammonium sulphate. The Tunisian phosphorite belongs to the ‘basic-apatites having a Ca/P ratio of 1.70-.77 and is characterized by a complex mineral composition with major component carbonate-fluorapatite. The used ammonium sulphate-NH4)2SO4 is obtained as a by-product from cleaning industrial waste gases, using e-beam technology. The composites of Tunisian phosphorite ores and ammonium sulphate, mixed in a mass ratio 1:1, were HEM activated during 10?min to 50?h with 20?mm Fe-milling bodies and temperature treated up to 1,100?°C. As a result, the chemical properties of the treated composites changed. Proofs were found for (i) formation of new phases during HEM activation such as NH4Ca(PO3)3 (NH4)2CaH4(P2O7)2, (NH4)2Ca3(P2O7)2.6H2O, CaH2P2O7 and α-Ca2P2O7; and (ii) decreasing of temperature intervals of phase changes in comparison to untreated composite.