Study the Nature and the Effects of the Impurities of Phosphate Rock in the Plants of Production of Phosphoric Acid

Authors

  • Ahmed Chaabouni Laboratory of sciences of materials and environment, Faculty of Sciences of Sfax, Sfax, Tunisia. Soukra Road km 4 - B.P. n° 802 - 3038 Sfax
  • Chaker Chtara Tunisian Chemical group, Gabes, Tunisia. Tunisian Chemical Group Research Directorate Z.I. BP72 - 6000 - GABES
  • Ange Nzihou Engineering School of Mines of Albi-Carmaux, Toulouse, France. Engineering School of Mines of Albi-Carmaux RAPSODEE Centre Campus Jarlard 81013 Albi CT Cedex 09
  • Hafed EL Feki

DOI:

https://doi.org/10.24297/jac.v7i2.5560

Keywords:

Natural phosphate, Chemical characterizations, Effect of the impurities, Process for producing phosphoric acid.

Abstract

Phosphate rocks from different deposits vary widely in composition, and these variations have important effects in phosphoric acid production. All phosphate rocks contain many impurities. Knowledge of the nature and contents of the various elements in the phosphate is required in the manufacturing process of phosphoric acid. All these chemical characteristics can help the operator to foresee its objectives under the operating conditions and the cost of production in the manufacturing process of phosphoric acid.

Two Tunisian natural phosphates coming from two different deposits were selected. We propose in this work studying the effects of the impurities that depending on their concentration can affect decisively the behavior of these ores in the process of production of phosphoric acid. Study the chemical composition of these ores is carried out according to standard analytical methods used for raw phosphates.

The results obtained show a slight difference in chemical properties between the two types of sedimentary phosphates and their aptitude to be used in the plants of production of phosphoric acid. 

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References

[1] Lehr, J. R. and McClellan, C. 1973. Phosphate Rocks: Important Factors in Their Economic and Technical Evaluation, CENTO, Symposium of the Mining and Beneficiation of Fertilizer Minerals. 1973. November 19-24. 142-194.
[2] Becker, P. 1983 Phosphate and Phosphoric Acid. Fertilizer Science and Technology Series. Marcel Decker. Vol.3. New York.
[3] Van der Sluis, S., Meszaros, Y., Wesselingh, J. A., and Van Rosmalen, G. M. 1986. A Clean Technology Phosphoric Acid Process. Proc. Fert. Soc. 1986 No. 249.
[4] Jaanikowsky, S. A. M., Robinson, N., and Sheldrick, W. 1964. Insoluble Phosphate Losses in Phosphoric Acid Manufacture by the Wet Process: Theory and Experimental Techniques. Presented at the 18th Meeting of the Fertilizer Society. London. 1964. Febr. 3-51.
[5] Slack, A. V. 1968. Phosphoric Acid. Fertilizer Science and Technology Series. Marcel Decker, New york, 1 (1968), 161.
[6] Frazier, A. W., Lehr, J. R., and Dillard, E. F. 1973. Chemical Behavior of Fluorine in the Production of Wet-Process Phosphoric Acid.
[7] Becker, P. 1983. Phosphate and Phosphoric Acid. Second edition. Revised and Expanded Fertiliser Science and Technology Series, Marcel Decker Inc, New York, Vol.3.
[8] Kruger, A., and Fowles, R. 1998. The effect of extraneous soluble ions in igneous rock phosphate on crystallography of gypsum dehydrate and thus phosphoric acid production, IFA technical conference, Marakesh. 1998. September.
[9] Halaseh, K., and Dukhggan, H. 1998. Operating experience of processing low grade Jordanian, Phosphates in the manufacture of WPA production, IFA Technical Conference Marakesh. 1998. September.
[10] CHAABOUNI, A., CHTARA, C., NZIHOU, A., and EL FEKI, H. 2013 Kinetic Study of the Dissolution of Tunisian Natural Phosphate or Francolite in Industrial Phosphoric Acid. J. Adv. in Chem. 6 (2013), 908-916.

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Published

2008-01-01

How to Cite

Chaabouni, A., Chtara, C., Nzihou, A., & Feki, H. E. (2008). Study the Nature and the Effects of the Impurities of Phosphate Rock in the Plants of Production of Phosphoric Acid. JOURNAL OF ADVANCES IN CHEMISTRY, 7(2), 1296–1299. https://doi.org/10.24297/jac.v7i2.5560

Issue

Vol. 7 No. 2 (2014)

Section

Articles

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