Research on the factors affecting the product filtration efficiency in mineral processing plants

  • Affiliations:

    Hanoi University of Mining and Geology, Hanoi, Vietnam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 10th-Dec-2023
  • Revised: 4th-Mar-2024
  • Accepted: 20th-Mar-2024
  • Online: 1st-Apr-2024
Pages: 76 - 85
Views: 925
Downloads: 9
Rating: 1.0, Total rating: 3
Yours rating

Abstract:

Filtration is a long-standing process but the technology has changed slowly, mainly based on the increase in filtration pressure and changes in the characteristics of filter media. The problem is high moisture remains product, requiring more expensive technologies (thermal drying) and long processing times. In the mineral processing industry, not only concentrates but also tailings need to be dewatered. The test samples were Cam Duong apatite concentrated and tailing ore, Ta Phoi copper concentrated and Sin Quyen tailing ore, Cua Ong fine coal, and Dak Nong red mud. All samples’ properties have been defined by sieving analyses, SEM method, and gravitational density measurement. Then, samples were experimented with using the Nutsche high-pressure filtration in the variable operational parameters. While the sludge concentration affected the specific resistance, the filter cake height and filtration pressure did not affect as much. At the suitable condition (homogeneous filter cake, 1 bar pressure difference, and 50 grams solid weight), the specific resistance and residual moisture content of the filter cake are around 2.5x10-12÷1.5x10-13 m-2, 15÷25%, respectively. Through the test results, some recommendations are mentioned in order to perfect the process and scale up for industrial production.

How to Cite
Pham, H.Thanh, Ta, A.Phuong, Pham, N.Thi, Phung, T.Tien, Tran, D.Van and Vu, C.Thi 2024. Research on the factors affecting the product filtration efficiency in mineral processing plants. Journal of Mining and Earth Sciences. 65, 2 (Apr, 2024), 76-85. DOI:https://doi.org/10.46326/JMES.2024.65(2).09.
References

Anlauf, H. (1994). Standardfiltertests zur Bestimmung des Kuchen und Filtermediumwiderstandes bei der Feststoff abtrennung aus Suspensionen. F and S Filtrieren und Separieren, 8, S. 63-70 und S. 116-126.

Anlauf, H. (2019). Wet Cake Filtration: Fundamentals, Equipment, Strategies. Wiley‐VCH Verlag GmbH and Co. KGaA.

Barua, A., Eagles, W., Giorgio, G., Ricard, F., and Stepanek, F. (2010). Experimental Study of Filter Cake Cracking During Deliquoring. Scientia Pharmaceutica 78, no. 3, 661.

Gasper, H. (1990). Handbuch der industriellen Fest- flüssig-Filtration. Heidelberg: Hüthig.

VDI 2762: Mechanical Solid - liquid separation by Cake Filtration, VDI 2762, Part 2: Determination of Filter Cake Resistance. Berlin: Beuth-Verlag: Berlin (2010).

Hess, W. F. (1991). Handbuch Maschinen und Apparate zur Fest-flüssig-Trennung. Essen: Vulkan Verlag.

Löwer, E., Pham, T. H., Leißner, T., and Peuker, U. A. (2020). Study on the influence of solids volume fraction on filter cake structures using micro tomography. Powder Technology, 363, 286-299.

Müller, E. (1983). Mechanische Trennverfahren. Band 2. Frankfurt: Aarau: Salle u. Sauerländer.

Peuker, U. (2018). Steam pressure filtration - Technology for drying tailing stockage. IMPC, (pages 899-906). Moscow.

Pham, T. H. (2022). Determination the specific resistance of limestone filter cake. Earth sciences and natural resources for sustainable development (ERSD 2022) (pages 720-725). Hanoi: Hanoi University of Mining and Geology.

Pham, T. H., and Peuker, U. (2021). Dewatering fine solid suspension by using steam pressure filtration. Journal of Mining and Earth Sciences, Vol. 62, Issue 3b, 62(3b), 9-21.

Pham, T., and Peuker, U. (2020). Shrinkage Cracking During Filtration Experiments - Influence of Suspension Concentration on Crack Formation. Proceedings of the International Conference on Innovations for Sustainable and Responsible Mining. Hanoi.

Pham, T., Vu, T., Tran, T., and Tran, V. (2022). Filtration techniques used in mineral processing and metallurgy. The 5th National Mineral Processing Science and Technology Conference (page 525). Hanoi: NXB Thanh Nien.

Rushton, A., Ward, A., and Holdich, R. (1996). Solid‐Liquid Filtration and Separation Technology. Weinheim: VCH Verlagsgesellschaft mbH.

Sparks, T., and Chase, G. (2015). Filters and Filtration Handbook. Butterworth-Heinemann.

Svarovsky, L. (2001). Solid-Liquid Separation. Butterworth-Heinemann.

Townsend, I. (2003). Automatic pressure filtration in mining and metallurgy. Minerals Engineering, Volume 16, Issue 2, 165-173.

Wakeman, R. (1976). Vacuum dewatering and residual saturation of incompressible filter cakes. International Journal of Mineral Processing, Volume 3, Issue 3, 193-206.

Wakeman, R., and Tarleton, E. S. (1999). Filtration: Equipment Selection, Modelling and Process Simulation. Elsevier.

Wills, B., and Napier-Munn, T. (2005). Wills' Mineral Processing Technology - An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. Butterworth-Heinemann.

Xue, L., Guo, X., and Chen, H. (2020). Fluid Flow in Porous Media - Fundamentals and Applications. World Scientific.

Zogg, M. (1987). Einführung in die Mechanische Verfahrenstechnik. Stuttgart: Teubner-Verlag

Other articles