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The design of the grinding circuits and the control of the transferring load in the ore preparation plants are of great importance from a technical and economic point of view. The importance of the circulating load for grinding process is well known and stated in the literature. However, there are not many studies on the effect on the following processes. In this study, the effect of the circulating load on both the grinding capacity and the subsequent flotation process was investigated at laboratory scale. Copper ore was used in the experiments. The circulating load was adjusted by changing the residence time of the material in the mill. Then, flotation experiments were carried out with the materials obtained at different circuit loads. The results showed that the grinding capacity can be increased up to 180% by optimizing the circulating load and it will positively affect the flotation performance. It was observed that a concentrate with the highest recovery for the same Cu grade was obtained with CLR of 150 % when compared to flotation recoveries through various CLRs. It is suggested that the circulating load should not be evaluated only in terms of the grinding process, but also the subsequent processes should be considered. Future studies in this area may contribute to industrial applications.
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Tom
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art. no. 149916
Opis fizyczny
Bibliogr. 20 poz., rys., wykr.
Twórcy
autor
- Istanbul Technical University, Faculty of Mines, Mineral Processing Engineering Department, Maslak, Istanbul, Turkey
autor
- Istanbul Technical University, Faculty of Mines, Mineral Processing Engineering Department, Maslak, Istanbul, Turkey
autor
- Istanbul Technical University, Faculty of Mines, Mineral Processing Engineering Department, Maslak, Istanbul, Turkey
autor
- Istanbul Technical University, Faculty of Mines, Mineral Processing Engineering Department, Maslak, Istanbul, Turkey
Bibliografia
- ALBUQUERQUE, L. G., WHEELER, ALBUQUERQUE L G, VALINE S B. (2013). High Frequency Vibrating Screens In Closed Grinding Circuits. In Goiânia-GO.
- BARKHUYSEN, N. J. (2009). Implementing Strategies To Improve Mill Capacity And Efficiency Through Classification By Particle Size Only, With Case Studies.
- BARRIOS, G. F. (2007). Increasing the Capacity of the Grinding Circuits Without Installing More Mills. The Fourth Southern African Conference on Base Metals
- BARTHOLOMEW, K. M., MCIVOR, R. E. (2013). Classification System Efficiency – A Comprehensive Closed-Circuit Grinding Optimisation Metric. World Gold Conference, September, 389–394.
- DÜNDAR, H. (2020). Investigating the benefits of replacing hydrocyclones with high-frequency fine screens in closed grinding circuit by simulation. Minerals Engineering, 148, 106212.
- DÜNDAR, H., KALUGIN, A., DELGADO, M., PALOMINO, A., TÜRKISTANLI, A., AQUINO, B., AND LYNCH, A. (2014). Screens and cyclones in closed grinding circuits. XXVII International Mineral Processing Congress, Santiago, Chile, 20-24 October 2014. Gecamin.
- FRAUSTO, J. J., BALLANTYNE, G. R., RUNGE, K., POWELL, S., CRUZ, R. (2017). The Impact of Classification Efficiency on Comminution and Flotation Circuit Performance. Metallurgical Plant Design and Operating Strategies – World’s Best Practice, 298–314.
- GUPTA, A., YAN, D. (Reds). (2016). Chapter 10 - Stirred Mills – Ultrafine Grinding. In Mineral Processing Design and Operations (Second Edition) (Second Edition, bll 287–316). doi:10.1016/B978-0-444-63589-1.00010-1
- HOCHSCHEID, R. E. (1987). Horizontal Cyclone in Closed-Circuit Grinding. Mining Engineering, 39(4), 262–266.
- Hukki, R. T., Eklund, H. (1965). The Relationship Between Sharpness of Classification and Circulating Load in Closed Grinding Circuits. SME Transactions, September, 265–268.
- JANKOVIC, A., VALERY, W., LEE, D., PERES, J., JESTON, S. (2013a). Validation Of A Closed Circuit Ball Mill Model. Journal of Mining and Metallurgy, 49 A, 1, 37–43.
- JANKOVIC, A., VALERY, W., LEE, D., PERES, J., JESTON, S. (2013b). Validation Of A Closed Circuit Ball Mill Model. In Journal of Mining and Metallurgy, 49 A (Issue 1).
- JANKOVIC, A., VALERY, W., SONMEZ, B. (2013). The Benefits of High Classification Efficiency in Closed Ball Mill Circuits. Proceedings of the XV Balkan Mineral Processing Congress, 160–163.
- JOKOVIC, V., MORRISON, R., ALEXANDER, D. (2020). Can the performance of semi-inverted hydrocyclones be similar to fine screening? Minerals Engineering, 146.
- KING, R. P. (1994). Comminution and liberation of minerals. Minerals Engineering, 7(2), 129–140.
- MANKOSA, M. J., KOHMUENCH, J. N., LUTTRELL, G. H., HERBST, J. A., NOBLE, A. (2016). Split-Feed Circuit Design For Primary Sulfide Recovery.
- SANTANA, R. C., FARNESE, A. C. C., FORTES, M. C. B., ATAÍDE, C. H., BARROZO, M. A. S. (2008). Influence of particle size and reagent dosage on the performance of apatite flotation. Separation and Purification Technology, 64(1), 8–15.
- SOKOLOVIC, J., MISKOVIC, S. (2018). The effect of particle size on coal flotation kinetics: A review. Physicochemical Problems of Mineral Processing, 54(4), 1172–1190.
- TRAHAR, W. J. (1981). A rational interpretation of the role of particle size in flotation. International Journal of Mineral Processing, 8(4), 289–327.
- TROMANS, D. (2008). Mineral comminution: Energy efficiency considerations. Minerals Engineering, 21(8), 613–620
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-e243eb3f-ad42-4c7d-a2c5-2acc379aebfa