Determination of physicochemical parameters of Djebel Onk phosphate flotation (Algeria)

User Rating:  / 1


D. Nettour, National School of Mines and Metallurgy, Annaba, Algeria, Badji Mokhtar University, Annaba, Algeria

M. Chettibi, Dr. Sc. (Tech.), Prof., Badji Mokhtar University, Annaba, Algeria

А. Bouhedja, Dr. Sc. (Tech.), Prof., Badji Mokhtar University, Annaba, Algeria

G. Bulut, Dr. Sc. (Tech.), Prof., Mineral Processing and Engineering Department, ITU, Maslak-34469, Istanbul,Turkey


Purpose. To define the optimal physical-chemical parameters for the flotation of Djebel Onk phosphate in Eastern Algeria, for obtaining a concentrate of high quality with minimal dispenses and environment protection and using micro-flotation tests to achieve maximum recovery of the latter.

Methodology. In order to achieve our purposes we used: the thermodynamic analysis method to characterize mineral surfaces and to define equilibrium pH value necessary for a complete phosphate recovery; micro-flotation tests to determine optimal quantity of sodium oleate and alkyl hydroxamic acid collector (AERO 6493) concentrations for a maximum concentrate extraction; Zeta-meter system to measure the Zeta potential of the phosphate electrokinetically to choose the suitable values insuring the best hydrophobicity of the particle surface.

Findings. pH equilibrium value for the “mineral-water” system makes 8.7 for Ca3(PO4)2. The maximal mineral recovery is obtained, it is about 88.6 %, at Oleate concentration till 30.44 mg/l. However, in the case of AERO6493, it reaches 86 % provided pH value equals 8.7; Zeta potential (surface charge) values -20.45 and -10.87 mV, correspon­ding to concentration of Sodium Oleate collector 30.44 and 75 mg/l of alkyl hydroxamic acid collector, respectively, answering the minimal necessary concentrations for a maximum apatite flotation at equilibrium pH value of 8.7.

Originality. The originality of this research is in the application of flotation process for the first time on Algerian phosphate ore, performed in optimal conditions (pH, collector concentrations, Zeta potential). This leads to a complete recovery of phosphate concentrate with minimal reagents dispenses and environment protection.

Practical value. Application of the obtained optimal physical-chemical parameters of phosphate flotation permits a using phosphate ores rationally, obtaining a high quality concentrate with poor tailings. All this contributes to the improvement of technical-economical parameters of Djebel Onk plant and environment protection.


1. Abdel-Khalek, N. A., Selim, K. A. and Abdallah, S. S., 2015. Characterization of Bacillus cereus bacteria isolated from Egyptian iron ore surface. Elixir Bio Technology, 81, pp. 32011‒32015.b

2. Nettour, D., Chettibi, M. and Bulut, G., 2016. Tailings Phosphate reprocessing by flotation in the case of Djebel Onk deposit, Algeria. IMPS 2016.

3. Wissem, G., Herchi, F. and Ben, Ali, I., 2016. Beneficiation of Phosphate Solid Coarse Waste from Redayef (Gafsa Mining Basin) by Grinding and Flotation Techniques. Procedia Engineering, 138, pp. 85–94. DOI: 10.1016/j.proeng.2016.02.065.

4. Venkoba, Rao, H. Kumar Velan, Jamal, S. I. and Ramesh, Mahadevana, 2014. Grade-Recovery prediction of an operating plant using flotation model and operating conditions. Procedia Engineering, 83, pp. 148–158. DOI: 10.1016/j.proeng.2014.09.033.

5. Chettibi, M., Abramov, A. A. and Boutrid, A., 2014. Physicochemical modeling of galena flotation system. Journal of mining science, 50(6), pp. 1069‒1078. DOI: 10.1134/S106273911406009X.

6. Chettibi, M. A., Boutrid, A., Laraba, A. and Abra­mov, A. A., 2015. Optimization of Physicochemical Parameters of Pyrite Flotation. Journal of Mining Science, 51(6), pp. 1262–1270. DOI: 10.1134/S1062739115060576.

7. Chettibi, M. and Abramov, A. A., 2016. Development of sphalerite activation regularity by cooper sulphate. Journal of Mining Science, 52(5), pp. 1003‒1010. DOI: 10.1134/S1062739116041526.

8. Chettibi, M., Boutrid, A. and Abramov, A. A., 2014. Sphalerite and its depression optimal conditions by zinc sulphate. International journal of current research, 6(2), pp. 5252‒5257.

9. Hailing,  Zhu, Wenqing,  Qin, Chen, Chen and Ruizeng, Liu, 2016. Interactions Between Sodium Oleate and Polyoxyethylene Ether and the Application in the Low-Temperature Flotation of Scheelite at 283 K. Journal of Surfactants and Detergents. pp. 1289‒1295.

10. Ashraf, Alsafasfeh and Lana, Alagha, 2017. Recovery of Phosphate Minerals from Plant Tailings Using Direct Froth Flotation. Minerals journals, 7(145), pp. 1‒14. DOI: 10.3390/min7080145.

11. Ahmed Yehia, Mohamed A. Khalek and Mayar Ammar, 2017. Cellulase as a new phosphate depressant in dolomite-phosphate flotation. Physicochem. Probl. Miner. Process, 53(2), pp. 1092–1104. DOI: 10.5277/ppmp170232.

12. Bada, Samson, Gcanga, Sandi, Falcon, Lionel, Falcon, Rosemary andMakhula, Mpho, 2013. Electrostatic concentration of phosphate flotation concentrate. International Journal of Mining Science and Technology, 23(3), pp. 403‒406. DOI: 10.1016/j.ijmst.2013.05.013.

 повний текст / full article


This Month
All days

Guest Book

If you have questions, comments or suggestions, you can write them in our "Guest Book"

Registration data

ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.


D.Yavornytskyi ave.,19, pavilion 3, room 24-а, Dnipro, 49005
Tel.: +38 (056) 746 32 79.
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
You are here: Home Archive by issue 2018 Contents №4 2018 Solid State Physics, Mineral Processing Determination of physicochemical parameters of Djebel Onk phosphate flotation (Algeria)