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

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.2005.09.001.10.1016/j.hydromet.2005.09.001Search in Google Scholar

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.10.2478/v10026-012-0088-zSearch in Google Scholar

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.Search in Google Scholar

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. Search in Google Scholar

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.2006.06.005.10.1016/j.cej.2006.06.005Search in Google Scholar

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.2010.03.002.10.1016/j.hydromet.2010.03.002Search in Google Scholar

7. McSweeney, G. & Charleston, A.G. (1985). Partially acidulated phosphate rocks-reactions with water. Nutr. Cycl. Agroecosys. 8(1), 75-83. DOI: 10.1007/BF01048908.10.1007/BF01048908Search in Google Scholar

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.Search in Google Scholar

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/BF00750216.10.1007/BF00750216Search in Google Scholar

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)60281-3.10.1016/S0065-2113(08)60281-3Search in Google Scholar

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/BF01049422.10.1007/BF01049422Search in Google Scholar

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/BF01986280.10.1007/BF01986280Search in Google Scholar

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/BF00750219.10.1007/BF00750219Search in Google Scholar

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:1004323715299.10.1023/A:1004323715299Search in Google Scholar

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: 10.1080/00103620009370447.10.1080/00103620009370447Search in Google Scholar

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/j.re.20120204.07.10.5923/j.re.20120204.07Search in Google Scholar

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.Search in Google Scholar

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/BF01066446.10.1007/BF01066446Search in Google Scholar

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/BF01049773.10.1007/BF01049773Search in Google Scholar

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: doi.org/10.3363/prb.10.3363/prb.27.18Search in Google Scholar

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, 1915-1927.10.1016/j.proeng.2012.07.588Search in Google Scholar

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: doi.org/10.1016/j.enmm.2015.03.002.10.1016/j.enmm.2015.03.002Search in Google Scholar

23. United States Geological Survey (2011). Mineral Commodity Summaries, January 2011. http://minerals.usgs.gov/minerals/pubs/commodity/phosphate_rock/mcs-2011-phosp.pdfSearch in Google Scholar

24. French standards NF U42-201. Phosphates minéraux naturels et engrais Dosage spectrophotométrique de l’anhydride phosphorique (méthode vanadomolybdique).Search in Google Scholar

25. Basson, W.D., Van Staden, J.F. & Cattin, P.M. (1981). Determination of phosphorus (P2O5) as molybdovanadophosphoric acid in phosphate rock with a fl ow-injection procedure. An. Bioan. Chem J. (307), 373-377. DOI: 10.1007/BF00480116.10.1007/BF00480116Search in Google Scholar

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.2005.1722.1727.10.3923/jas.2005.1722.1727Search in Google Scholar

27. Lefi res, 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: doi.org/10.4236/ ijnm.2014.31001.Search in Google Scholar

28. European Fertilizer Manufacturers’ Association. (2000). Production of phosphoric acid. Booklet No. 4 of 8. Brussels, Belgium. http://www.productstewardship.eu/fileadmin/user_upload/user_upload_prodstew/documents/Booklet_nr_4_Production_of_Phosphoric_Acid.pdfSearch in Google Scholar