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Obtaining the partially acidulated phosphate rocks by means of intermediate-grade phosphate and diluted phosphoric acid: Influence of some parameters

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In this work, some parameters during the partial acidulation by phosphoric acid of phosphate 53.75% BPL (bone phosphate of lime) having different particle sizes are determined. P2O5 recovery is obtained by performing a series of reactions using phosphoric acid diluted from 10 to 40 wt.% and with reaction times ranging from 10 to 50 minutes. The best conversion rates are obtained with the following reaction parameters: phosphates size: 88-177 μm, reaction time: 50 minutes and phosphoric acid concentration: 40 wt.%. In the second part, the water-soluble P2O5 of PAPRs (Partially Acidulated Phosphate Rocks) obtained with phosphoric acid 30% and 40 wt.% is measured. The results of experiments showed that the water-soluble P2O5 has reached 15.2% for PAPRs obtained by reacting phosphate 88 μm with phosphoric acid 40 wt%.
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Bibliogr. 28 poz., rys., tab.
  • University Badji Mokhtar, Laboratory of Water Treatment and Recycling of Industrial Waste, Department of Chemistry, BP12, 23000, Annaba, Algeria,
  • University Badji Mokhtar, Department of Chemistry, Annaba, Algeria
  • University Badji Mokhtar, Department of Chemistry, Annaba, Algeria
  • University Badji Mokhtar, Department of Chemistry, Annaba, Algeria
  • University Badji Mokhtar, Department of Chemistry, Annaba, Algeria
  • 1. Ashraf, M., Iqbal-Zafar, Z. & Ansari, T. ( 2005). Selective leaching kinetics and upgrading of low-grade calcareous phosphate rock in succinic acid. Hydrometallurgy 80(4), 286-292. DOI: 10.1016/j.hydromet.2005.09.001.
  • 2. Skut, J., Hoffmann, K. & Hoffmann, J. (2012). Temperature and moisture influence on the curing process of PAPR-type fertilizer products. Pol. J. Chem. Tech. 14 (3), 77-82. DOI: 10.2478/v10026-012-0088-z.
  • 3. IAEA. (2004). Occupational radiation protection in the mining and processing of raw materials. IAEA Safety Standards Series No. RS-G-1.6, IAEA. Vienna.
  • 4. Watti, A., Alnjjar, M. & Hammal, A. (2011). Improving the specifications of Syrian raw phosphate by thermal treatment. Arab J. Chem. DOI: 10.1016/j. arabjc.2011.07.009.
  • 5. Sengul, H., Ozer, A.K. & Gulaboglu, M.S. (2006). Benefication of Mardin Mazidagi calcareous phosphate rock using dilute acetic acid solutions. Chem. Eng. J. 122 (3), 135-140. DOI: 10.1016/j.cej.2006.06.005.
  • 6. Mahdi, G., Mehdi, I. & Mohammad, N. (2010). A review of the beneficiation of calcareous phosphate ores using organic acid leaching. Hydrometallurgy 103(1-4), 96-107. DOI: 10.1016/j.hydromet.2010.03.002.
  • 7. McSweeney, G. & Charleston, A.G. (1985). Partially acidulated phosphate rocks-reactions with water. Nutr. Cycl. Agroecosys. 8(1), 75-83. DOI: 10.1007/BF01048908.
  • 8. Schultz, J.J. (1986). Sulfuric acid-based partially acidulated phosphate rock: Its production, cost, and use. Tech. Bull.IFDC-T-31. Muscle Shoals, USA, IFDC.
  • 9. Bolan, N.S., Hedley, M.J. & Loganathan, P. (1993). Preparation, forms and properties of controlled-release phosphate fertilizers. Nutr. Cycl. Agroecosys 35(1), 13-24. DOI: 10.1007/BF00750216.
  • 10. Hammond, L.L., Chien, S.H. & Mokwunye, A.U. (1986). Agronomic value of unacidulated and partially acidulated phosphate rocks indigenous to the tropics. Adv. Agron. 40, 89-140. DOI: 10.1016/S0065-2113(08)60281-3.
  • 11. Braithwaite, A.C. & Rogers, D.A. (1987). Partially acidulated phosphate rocks made from phosphoric acid using direct acidulation-granulation techniques. Fert Res. 12(1), 85-98. DOI: 10.1007/BF01049422.
  • 12. Ghani, A. & Rajan, S.S.S. (1997). Differential availability of partially sulphuric and phosphoric acidulated phosphate rocks I. Plant Response. Nutr. Cycl. Agroecosys. 47(3), 251-259. DOI: 10.1007/BF01986280.
  • 13. Marwaha, B.C. & Rajan, S.S.S. (1993). Use of partially acidulated phosphate rocks as phosphate fertilizers. Nutr. Cycl. Agroecosys. 35(1), 47-59. DOI: 10.1007/BF00750219.
  • 14. Iretskaya, S.N., Chien, S.H. & Menon, R.G. (1998). Effect of acidulation of high cadmium containing phosphate rocks on cadmium uptake by upland rice. Plant Soil 201(2), 183-188. DOI: 10.1023/A:1004323715299.
  • 15. McLaya, C.D.A., Rajana, S.S.S. & Liua, Q. (2000). Agronomic effectiveness of partially acidulated phosphate rock fertilizers in an allophanic soil at nearneutral pH. Soil Sci. Plant Anal. 31(3-4), 423-435. DOI: 10.1080/00103620009370447.
  • 16. Ghosal, P.K. & Chakraborty, T. (2012). Comparative solubility study of four phosphatic fertilizers in different solvents and the effect of soil. Res. Environ. 2(4), 75-179. DOI: 10.5923/
  • 17. Schultz, J.J. (1986). Sulfuric acid-based partially acidulated phosphate rock: Its production, cost, and use. Tech. Bull.IFDC-T-31. Muscle Shoals, USA, IFDC.
  • 18. Bolan, N.S. Hedley, M.J., Syers, J.K. & Tillman, R.W. (1987). Single superphosphate-reactive phosphate rock mixtures. Factors affecting chemical composition. Fert. Res. 13(3), 223-239. DOI: 10.1007/BF01066446.
  • 19. Hedley, M.J., Bolan, N.A. & Braithwaite, A.C. (1988). Single superphosphate-reactive phosphate rock mixtures. The effect of phosphate rock type and denning time on the amounts of acidulated and extractable phosphate. Fert. Res. 16(2), 179-194. DOI: 10.1007/BF01049773.
  • 20. Mizane, A. & Rehamnia, R. (2012). Study of some parameters to obtain the P2O5 water- Soluble from partially acidulated phosphate rocks (PAPRs) by sulfuric acid. Phosph. Res. Bull. 27, 27-18. DOI:
  • 21. Bezzi, N., Aïfa, T., Hamoudi, S. & Merabet, D. (2012). Trace elements of Kef Es Sennoun natural Phosphate (Djebel Onk, Algeria) and how they affect the various mineralurgic modes of treatment. Proced. Engine. 42, 1915-1927.
  • 22. Lassis, M., Mizane, A., Dadda, N. & Rehamnia, R. (2015). Dissolution of Djebel Onk phosphate ore using sulfuric acid. Environ. Nanotech., Monit. & Manag. 4, 12-16. DOI:
  • 23. United States Geological Survey (2011). Mineral Commodity Summaries, January 2011.
  • 24. French standards NF U42-201. Phosphates minéraux naturels et engrais Dosage spectrophotométrique de l’anhydride phosphorique (méthode vanadomolybdique).
  • 25. Basson, W.D., Van Staden, J.F. & Cattin, P.M. (1981). Determination of phosphorus (P2O5) as molybdovanadophosphoric acid in phosphate rock with a flow-injection procedure. An. Bioan. Chem J. (307), 373-377. DOI: 10.1007/BF00480116.
  • 26. Ashraf, M., Zafar, I., Ansari, T.M. & Fiaz, A. (2005). Selective Leaching Kinetics of Calcareous Phosphate Rock in Phosphoric Acid. J. Appl. Sci. (5), 1722-1727. DOI: 10.3923/jas.2005.1722.1727.
  • 27. Lefires, H., Medini, H., Megriche, A. & Mgaidi, A. (2014). Dissolution of Calcareous Phosphate Rock from Gafsa (Tunisia) Using Dilute Phosphoric Acid Solution. Inter. J. Nonfer. Metal. (3), 1-7. DOI: ijnm.2014.31001.
  • 28. European Fertilizer Manufacturers’ Association. (2000). Production of phosphoric acid. Booklet No. 4 of 8. Brussels, Belgium.
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
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