Minerals & Metallurgical Processing

, Volume 35, Issue 2, pp 98–108 | Cite as

Flotation performance of a new collophane reverse flotation collector

  • D. S. HeEmail author
  • Z. H. Xie
  • W. M. Xie
  • X. Liu
  • H. Q. Li
  • Y. Y. Wu
  • Y. Hu


China has rich phosphate rock resources, but with their continuous depletion, the rich ore resources have become increasingly scarce, which makes the exploration of collophane more important. Medium- and low-grade phosphate rock cannot be utilized until their impurities have been removed through mineral processing. However, due to the similar physical and chemical properties of dolomite and phosphorus minerals, the separation of dolomite from phosphate rock is a challenge for the beneficiation of phosphate rock.

In this study, a collector that can separate dolomite from apatite by selective flotation was combined. The agent, named D12, is a new anionic surfactant that was obtained by the phosphorylation of ether-based nonionic surfactants. In order to determine the performance of the D12 collector, it was used in a flotation test. In this process, the raw ore had phosphorus oxide (P2O5) grade of 22.06 percent and magnesium oxide (MgO) content of 5.94 percent. The grinding fineness of 0.074 mm was approximately 87.33 percent. For roughing, the dosages of sulfuric acid (H2SO4), citric acid and collector were 7 kg/t, 1.5 kg/t and 0.5 kg/t, respectively. In the cleaning stage, the dosages of H2SO4 and collector were 5 kg/t and 0.3 kg/t, respectively. Concentrate grade of 31.02 percent and recovery rate of 68.64 percent with an open circuit were obtained under these conditions. Moreover, concentrate grade of 30.31 percent and recovery rate of 84.47 percent with MgO content of 0.92 percent were obtained with closed-circuit beneficiation indexes. The agent, D12, is promising to be applied to the industrial practice of mineral processing of phosphate rock.

Key words

Reverse flotation De-magnesium Flotation performance Phosphate 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Abdel-Khalek, N.A., 2000, “Evaluation of flotation strategies for sedimentary phosphate with siliceous and carbonates gangues,” Minerals Engineering, Vol. 13, pp. 789–793, Scholar
  2. Abdel-Zaher, M.A., 2008, “Physical and thermal treatment of phosphate ores-anoverview,” International Journal of Mineral Processing, Vol. 85, pp. 59–84, Scholar
  3. Anazia, I.J., and Hanan, J., 1987, “New flotation approach for carbonate phosphate separation,” Minerals & Metallurgical Processing, Vol. 4, pp. 196–202.Google Scholar
  4. Cao, Q.B., Cheng, J.H., Wen, S.M., Li, C.X., Bai, S.J., and Liu, D., “A mixed collector system for phosphate flotation,” Minerals Engineering, Vol. 78, pp. 114–121, Scholar
  5. Chen, C.Y., Zhong, J., Du, L.P., and Guo, Y.J., 2015, “Experimental study on a low-grade weathered collophanite ore in Yunnan,” Industrial Minerals & Processing, Vol. 12, pp. 1–3.Google Scholar
  6. Chen, X., and Zhang Z.Y., 2004, “Study on the influence of magnesium on phosphate rock and its rational utilization,” Phosphate Industry, Vol. 1, pp. 7–12.Google Scholar
  7. Dong, X.F., Marie, P., Dai, Z.F., and Robert, P., 2017, “Mineral-mineral particle collisions during flotation remove adsorbed nanoparticle flotation collectors,” Journal of Colloid and Interface Science, Vol. 504, pp. 178–185, Scholar
  8. Du, L.P., Chen, C.Y, Zhong, J., et al., 2016, “Brief analysis of phosphate beneficiation technology progress and problem countermeasures,” Industrial Minerals & Processing, Vol. 1, pp. 57–61.Google Scholar
  9. Elgillani, D.A., and Abouzeid, A.Z.M., 1993, “Flotation of carbonates from phosphate ores in acidic media,” International Journal of Mineral Processing, Vol. 38, pp. 235–256, Scholar
  10. El-Shall, H., Zhang, P., and Snow, R., 1996, “Comparative analysis of dolomitefrancolite flotation techniques,” Minerals & Metallurgical Processing, Vol. 13, pp. 135–140.Google Scholar
  11. George, B.A., Jonas, A., and William, S., 2017, “A study of flotation characteristics of monazite, hematite, and quartz using anionic collectors,” International Journal of Mineral Processing, Vol. 158, pp. 55–62, Scholar
  12. Gao, Y., Liu, Q.J., and Song, J.W., 2017, “Experimental study on mineral processing of a high magnesium collophane ore in Yunnan,” Non-Metallic Mines, Vol. 40, No. 3, pp. 61–63.Google Scholar
  13. Gharabaghi, M., Noaparast, M., and Irannajad, M., 2009, “Selective leaching kinetics of low-grage calcareous phosphate ore in acetic acid,” Hydrometallurgy, Vol. 95, pp. 341–345, Scholar
  14. He, D.S., Liu, X., Peng, S., et al., 2017, “Double reverse flotation of a phosphate rock in Hubei,” Industrial Minerals & Processing, Vol. 46, No. 1, pp. 1–3.Google Scholar
  15. Birken, I., Bertucci, M., Chappelin, J., and Jorda, E., 2016, “Quantification of Impurities, Including Carbonates Speciation for Phosphates Beneficiation by Flotation,” Procedia Engineering, Vol. 138, pp. 72–84, Scholar
  16. Li, D.L., and Zhang, Y., 2010, “Study on milling flowsheet of middle and low grade phorsphorite ore in Yichang,” Journal of Wuhan Institute of Technology, Vol. 32, No. 1, pp. 54–57.MathSciNetGoogle Scholar
  17. Li, Z.L., 2015, “Development and Application of Reverse Flotation Collector for Magnesium Removal from Cellophane,” Master Thesis, Wuhan Institute of Technology, 7 pp.Google Scholar
  18. Liu, J.X., 2009, “Phosphate rock resource characteristic and suggestion on its exploitation and utilization,” Industrial Minerals & Processing, Vol. 3, pp. 36–39.Google Scholar
  19. Luo, H.H., and Zhang, H.W., 2015, “Study on reasonable flotation process of the scrubbed tailings in Haikou,” Industrial Minerals & Processing, Vol. 34, No. 7, pp. 1–3.Google Scholar
  20. Luo, H.H., Zhong, K.N., Wei, Y.H., and Wang, Y.L., 2002, “Study on the beneficiation of depressant W-98 in reverse flotation of Wengfu phosphate rock,” Journal of Wuhan Institute of Technology, Vol. 4, pp. 49–52.Google Scholar
  21. Mohammadkhani, M., Noaparast, M., Shafaei, S.Z., Amini, A., Amini, E., and Abdollahi, H., 2011, “Double reverse flotation of a very low grade sedimentary phosphate rock, rich in carbonate and silicate,” International Journal of Mineral Processing, Vol. 100, pp. 157–165, Scholar
  22. Qu, J., and Ge, Y.Y., 2014, “Research progress of mineral processing technology and regent of collophanite,” Industrial Minerals & Processing, Vol. 43, No. 10, pp. 1–6 and 17.Google Scholar
  23. Sun, H., Zheng, G.B., Li, S.Q., Ren, A.J., et al., 2017, “Effect of BK425 and HA-1 on reverse-flotation of phosphorite to remove magnesium and aluminum,” Mining and Metallurgy, Vol. 26, No. 4, pp. 1–4.Google Scholar
  24. Wu, S.X., Wang, L.S., Zhao, L.S., Zhang, P., E-Shall, H., Moudgil, B., Huang, X.W., and Zhang, L.F., 2018, “Recovery of rare earth elements from phosphate rock by hydrometallurgical processes — A critical review,” Chemical Engineering Journal, Vol. 335, pp. 774–800, Scholar
  25. Yang, J.Z., 2007, “Technical measures to cope with dilution of phosphate deposit for WPA enterprises,” Phosphate & Compound Fertilizer, Vol. 22, No. 4, pp. 24–25.Google Scholar
  26. Zhang, G.S., 2013, “Study on New De-Magnesium Collector of Collophanite Ore in Indirect Flotation,” Master Thesis, Wuhan University of Technology, 1 pp.Google Scholar
  27. Zhang, P., 2014, “Comprehensive recovery and sustainable development of phosphate resources,” Procedia Engineering, Vol. 83, pp. 37–51, Scholar
  28. Zhang, D.D., Wei, A.B., Qu, G.F., and Ning, P., 2015, “Progress of removing magnesium impurities from phosphoric ore,” Multipurpose Utilization of Mineral Resources, Vol. 5, pp. 1–7.Google Scholar
  29. Zhou, B., Xu, W., Chen, Y., and Xie, T., 2016, “Research progress of cationic collector in reverse flotation of phosphate ore,” Conservation and Utilization of Mineral Resources, Vol. 3, pp. 62–65, 72.Google Scholar

Copyright information

© The Society for Mining, Metallurgy & Exploration 2018

Authors and Affiliations

  • D. S. He
    • 1
    Email author
  • Z. H. Xie
    • 1
  • W. M. Xie
    • 1
  • X. Liu
    • 2
  • H. Q. Li
    • 1
  • Y. Y. Wu
    • 1
  • Y. Hu
    • 1
  1. 1.Wuhan Institute of TechnologyXingfa College of MiningWuhanChina
  2. 2.Hubei Dajiang Environmental Protection Technology Co., Ltd.Huangshi, HubeiChina

Personalised recommendations