International Journal of Mineral Processing and Extractive Metallurgy

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Investigation of Affecting Parameters on Heap Leaching Performance and Reducing Acid Consumption of Low Grade Oxide-Sulfide Copper Ore

Received: 26 May 2017    Accepted: 26 July 2017    Published: 24 August 2017
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Abstract

Heap leaching method is known as cheap method for copper extraction. Presence of clay and acid consumer waste minerals are the most critical issues because they may bring out the process from economic mode. For reduce acid consumption and increasing copper extraction in heap leaching method, about 3 tons sample was taken randomly from different low grade zones. After homogenization and spelling into small parts, bottle roll tests were carried out to achieve maximum copper recovery and acid consumption in a short time at pH= 1, 1.1 and 1.2. Maximum copper recovery were 60.8, 60.2 and 60.1%, respectively. Also acid consumption were 107.30, 99.90 and 93.23 kg/t of ore, respectively. After diagnostic tests, nine columns with dimension 2m height and 15cm diameter were filled by 0.5, 1 and 1.5 inches ore. Columns were irrigated with 7, 9 and 11 g/l as acid solution concentration at flow rates of 7, 11 and 15 l/m2*h for 63 days. Results showed that there are high correlation between copper and iron recoveries. Copper recovery changed from 25.5% to 58.9% while iron recovery changed from 4.7% to 15.2%. Acid consumption were achieved between 18 to 54 kg per ton of ore. Acid solution concentration and irrigation flow rate are the most important parameters on the copper and iron recoveries. By increasing of leaching period Copper extraction will increase, but acid will be waste more. Copper and iron recoveries were increased with increasing the acid solution concentration and irrigation flow rate but Increasing in amount of acid consumption does not increase copper extraction inevitably. Irrigation flow rate of acid solution has significant effect on acid consumption. With decreasing the ore particle size, both of copper recovery and acid consumption were increased.

DOI 10.11648/j.ijmpem.20170204.11
Published in International Journal of Mineral Processing and Extractive Metallurgy (Volume 2, Issue 4, July 2017)
Page(s) 40-45
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Copper Oxide Heap Leaching, Bottle Rolling Test, Column Tests, Copper and Iron Recoveries, Acid Sulfuric Consumption

References
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[2] Massinaie, M., Oliazadeh, M., Seyed Bagheri, A., 2006. Biological copper extraction from melting furnaces dust of Sarcheshmeh copper mine. J. Mineral Processing. 81, 1, 58-62
[3] Norgate, T., Jahanshahi, S. 2010. Low grade ores – Smelt, leach or concentrate? J. Minerals Engineering. 23, 2. 65-73
[4] Hiskey, J. B., 1983 “Heap leaching practice at Alligator Ridge,” Chapter 1, Current status of U. S. Gold and Silver Heap Leaching Operations, Heap and Dump Leaching practice, Proceedings from the 1983 SME Fall Meeting, October 19-21, 1983, Salt Lake City, pp. 1-7
[5] Breitenbach, A. J., Smith M, E. 2007. Geomembrane Raincoat Liners in the Mining Heap Leach Industry, J. Geosynthetics. 25, 2. 32-39
[6] Peacy, J., Xian-Jian, G., Robles, E. 2004. Copper hydrometallurgy: current status, preliminary economics, future direction and positioning versus smelting, Trans. J. Nonferrous Met. Soc. China, 14, 3. 560-568
[7] Aixiang, W., Shenghu, Y., Wenqing, Q., Jishan, L., Guanzhou, Q. 2009. The effect of preferential flow on extraction and surface morphology of copper sulphides during heap leaching, J. Hydrometallurgy. 95, 1-2. 76-81
[8] Ghorbani, Y., Franzidise, J. P., Peterson. J. 2016. Heap Leaching Technology-Current State, Innovations, and Future Directions: A Review. J. Mineral Processing and Extractive Metallurgy Review. 37, 2. 73-119
[9] Nikhil Dhawan, M., Safarzadeh, S., Miller, J. D., Michael, S., Moats, Raj K. Rajamani. 20013. Crushed ore agglomeration and its control for heap leach operations. J. Minerals Engineering, 41. 53-70
[10] Phanindra, K., Tolga D., Nikhil D., Xuming W., Lina C. L., Millera Ja, n D. 2011. Evaluation of stucco binder for agglomeration in the heap leaching of copper ore. J. Minerals Engineering, 24, 8. 886-893
[11] Lwambiyi, M., Maweja, K., Kongolo, K., Lwambiyi, N. M., Diyambi, M. 2009. Investigation into the heap leaching of copper ore from the Disele deposit. J. Hydrometallurgy. 98, 1-2. 177-180.
[12] Ghorbani, Y., Becker, M., Mainza, A., Franzidis, J P. 2011. Large particle effect in chemical/biochemical heap leach processes-A review. J. Minerals Engineering. 24, 11. 1172-1184
[13] Khodadadi Darban, A., Koleyni, S MJ., Sheikhzadeh, Gh., Hasani, M. 2009. Mathematical Modelling and Development Software for leaching of Copper Oxide Minerals. J. Mining engineering. 4. 23-34
[14] Savov, G., Angelov, T., Tsekov, V., Grigorova, I., Nishkov I. 2011. Heap and Dump Leach Process at the Buchim Cooper Project – Metallurgical Testwork. XXII World Mining Congress, Vol. II, Istanbul, Turkey. 271-276
[15] Andrade Lima, L. R. P. 2006. Liquid axial dispersion and holdup in column leaching, J. Minerals Engineering. 19, 1. 37-47
[16] Dulliea. F. A. L. D. 1992. Porous Media: Fluid Transport and Pore Structure, B. Academic Press Inc. NewYork 1992
[17] Dreisinger, D. 2006. Copper leaching from primary sulfides: Options for biological and chemical extraction of copper. J. Hydrometallurgy. 83, 1-4. 10-20
[18] Schlitt, W. J. 1999. Hydrometallurgical treatment of Haib copper ore. J. south African institute of mining and metallurgy, 99, 2. 75-92
[19] Ferron, CJ. Riveros, P. A., Dixon, D. G. 2003. Leaching of secondary copper minerals using regenerated ferric sulfate Copper, VI: Hydrometallurgy of Copper, J. SGS MINERALS SERVICES, Technical Paper. 337-352
[20] Sherlock, E. J., Lawrence, R. W., Poulin, R. 1995. On the neutralization of acid rock drainage by carbonate and silicate minerals. J. Environmental Geology, 25, 1. 43-54
[21] Dopson, M., Halinen, AK, Rahunen, N., Boström, D., Sundkvist, JE. Riekkola-Vanhanen, M., Kaksonen, AH., Puhakka, JA. 2008. Silicate mineral dissolution during heap bioleaching. J. Biotechnol Bioeng. 99, 4. 811-820
Author Information
  • School of Mining, College of Engineering, Sahand University of Technology, Tabriz, Iran

  • School of Mining, College of Engineering, Sahand University of Technology, Tabriz, Iran

  • School of Mining, College of Engineering, University of Tehran, Tehran, Iran

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    Mohsen Azmayandeh, Valeh Aghazadeh, Hadi Abdollahi. (2017). Investigation of Affecting Parameters on Heap Leaching Performance and Reducing Acid Consumption of Low Grade Oxide-Sulfide Copper Ore. International Journal of Mineral Processing and Extractive Metallurgy, 2(4), 40-45. https://doi.org/10.11648/j.ijmpem.20170204.11

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    Mohsen Azmayandeh; Valeh Aghazadeh; Hadi Abdollahi. Investigation of Affecting Parameters on Heap Leaching Performance and Reducing Acid Consumption of Low Grade Oxide-Sulfide Copper Ore. Int. J. Miner. Process. Extr. Metall. 2017, 2(4), 40-45. doi: 10.11648/j.ijmpem.20170204.11

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    AMA Style

    Mohsen Azmayandeh, Valeh Aghazadeh, Hadi Abdollahi. Investigation of Affecting Parameters on Heap Leaching Performance and Reducing Acid Consumption of Low Grade Oxide-Sulfide Copper Ore. Int J Miner Process Extr Metall. 2017;2(4):40-45. doi: 10.11648/j.ijmpem.20170204.11

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  • @article{10.11648/j.ijmpem.20170204.11,
      author = {Mohsen Azmayandeh and Valeh Aghazadeh and Hadi Abdollahi},
      title = {Investigation of Affecting Parameters on Heap Leaching Performance and Reducing Acid Consumption of Low Grade Oxide-Sulfide Copper Ore},
      journal = {International Journal of Mineral Processing and Extractive Metallurgy},
      volume = {2},
      number = {4},
      pages = {40-45},
      doi = {10.11648/j.ijmpem.20170204.11},
      url = {https://doi.org/10.11648/j.ijmpem.20170204.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijmpem.20170204.11},
      abstract = {Heap leaching method is known as cheap method for copper extraction. Presence of clay and acid consumer waste minerals are the most critical issues because they may bring out the process from economic mode. For reduce acid consumption and increasing copper extraction in heap leaching method, about 3 tons sample was taken randomly from different low grade zones. After homogenization and spelling into small parts, bottle roll tests were carried out to achieve maximum copper recovery and acid consumption in a short time at pH= 1, 1.1 and 1.2. Maximum copper recovery were 60.8, 60.2 and 60.1%, respectively. Also acid consumption were 107.30, 99.90 and 93.23 kg/t of ore, respectively. After diagnostic tests, nine columns with dimension 2m height and 15cm diameter were filled by 0.5, 1 and 1.5 inches ore. Columns were irrigated with 7, 9 and 11 g/l as acid solution concentration at flow rates of 7, 11 and 15 l/m2*h for 63 days. Results showed that there are high correlation between copper and iron recoveries. Copper recovery changed from 25.5% to 58.9% while iron recovery changed from 4.7% to 15.2%. Acid consumption were achieved between 18 to 54 kg per ton of ore. Acid solution concentration and irrigation flow rate are the most important parameters on the copper and iron recoveries. By increasing of leaching period Copper extraction will increase, but acid will be waste more. Copper and iron recoveries were increased with increasing the acid solution concentration and irrigation flow rate but Increasing in amount of acid consumption does not increase copper extraction inevitably. Irrigation flow rate of acid solution has significant effect on acid consumption. With decreasing the ore particle size, both of copper recovery and acid consumption were increased.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Investigation of Affecting Parameters on Heap Leaching Performance and Reducing Acid Consumption of Low Grade Oxide-Sulfide Copper Ore
    AU  - Mohsen Azmayandeh
    AU  - Valeh Aghazadeh
    AU  - Hadi Abdollahi
    Y1  - 2017/08/24
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    DO  - 10.11648/j.ijmpem.20170204.11
    T2  - International Journal of Mineral Processing and Extractive Metallurgy
    JF  - International Journal of Mineral Processing and Extractive Metallurgy
    JO  - International Journal of Mineral Processing and Extractive Metallurgy
    SP  - 40
    EP  - 45
    PB  - Science Publishing Group
    SN  - 2575-1859
    UR  - https://doi.org/10.11648/j.ijmpem.20170204.11
    AB  - Heap leaching method is known as cheap method for copper extraction. Presence of clay and acid consumer waste minerals are the most critical issues because they may bring out the process from economic mode. For reduce acid consumption and increasing copper extraction in heap leaching method, about 3 tons sample was taken randomly from different low grade zones. After homogenization and spelling into small parts, bottle roll tests were carried out to achieve maximum copper recovery and acid consumption in a short time at pH= 1, 1.1 and 1.2. Maximum copper recovery were 60.8, 60.2 and 60.1%, respectively. Also acid consumption were 107.30, 99.90 and 93.23 kg/t of ore, respectively. After diagnostic tests, nine columns with dimension 2m height and 15cm diameter were filled by 0.5, 1 and 1.5 inches ore. Columns were irrigated with 7, 9 and 11 g/l as acid solution concentration at flow rates of 7, 11 and 15 l/m2*h for 63 days. Results showed that there are high correlation between copper and iron recoveries. Copper recovery changed from 25.5% to 58.9% while iron recovery changed from 4.7% to 15.2%. Acid consumption were achieved between 18 to 54 kg per ton of ore. Acid solution concentration and irrigation flow rate are the most important parameters on the copper and iron recoveries. By increasing of leaching period Copper extraction will increase, but acid will be waste more. Copper and iron recoveries were increased with increasing the acid solution concentration and irrigation flow rate but Increasing in amount of acid consumption does not increase copper extraction inevitably. Irrigation flow rate of acid solution has significant effect on acid consumption. With decreasing the ore particle size, both of copper recovery and acid consumption were increased.
    VL  - 2
    IS  - 4
    ER  - 

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