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Upgradation of Chimiari Black Shale Khyber Pakhtunkhawa Region of Pakistan by Froth Floatation

Received: 12 June 2025     Accepted: 20 February 2026     Published: 10 March 2026
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Abstract

Extensive reserves of black shale in Pakistan are enriched with economically important metals such as vanadium (V), titanium (Ti), manganese (Mn), zinc (Zn), rubidium (Rb), and copper (Cu), alongside an appreciable content of organic carbon (OC). This study investigates the effectiveness of flotation techniques in upgrading the content of these metals and OC, while simultaneously examining the behavior of impurities. Two sets of flotation experiments were conducted utilizing kerosene oil as a collector and sodium hydroxide (NaOH) to control pH. Pine oil was introduced as a frothing agent in Experiment-II. The results demonstrate a significant increase in the concentration of total organic carbon (TOC) and TiO2. Experiment-I achieved enrichment ratios of 1.44 for TOC and 1.57 for TiO2, while Experiment-II achieved factors of 1.50 and 1.09, respectively. The flotation process selectively removed impurities such as SiO2, SO3, CaO, and Fe2O3 into the tailing’s fractions of both experiments. Additionally, X-ray fluorescence (XRF) analysis revealed the successful upgrading of ZnO, CuO, and Rb2O, which were detected in either the tailings or concentrate but not in the feed samples. This research highlights the promise of optimized flotation processes for enhancing the value of black shale deposits, providing a foundation for further refinement and industrial application.

Published in Science Discovery Chemistry (Volume 1, Issue 1)
DOI 10.11648/j.sdc.20260101.11
Page(s) 1-8
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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), 2026. Published by Science Publishing Group

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Keywords

Black Shale, Chimiari, Froth Floatation, Recovery, Upgradation

References
[1] R. K. Jörg Landwaldt, "Bio-beneficiation of multimetal black shale ore by flotation.," Physicochemical Problems of Mineral Processing, vol. 41, no. 1, pp. 291-299, 2007.
[2] E. M.-T. P. E. LIPPMAA, "RESOURCES, PRODUCTION AND PROCESSING OF BALTOSCANDIAN MULTIMETAL BLACK SHALES," Oil Shale, vol. 28, no. 1, pp. 68-77, 2011.
[3] E. B. T. James D. Vine, "Geochemistry of Black Shale Deposits: A Summary Report.," Economic Geology, pp. 253-272, 1970.
[4] A. S. I. M. E. J. Zygmunt Sadowski, "A View on the Organic Matter and Metalloporphyrins Biodegradation as Characteristic Components of Black Shale Ores," Advanced Materials Research, vol. 20, pp. 95-98, 2007.
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[6] A. A. M. S. M. S. M. M. I. B. M. Muhammad Tariq, "Characterization of Black Shale of Chimiari Khyber Pakthunkhawa Region of Pakistan for Its Potential as Multi Minerals," International Journal of Science and Research, vol. 2, no. 1, pp. 231-238, 2013.
[7] G. L. M. S. J. C. H. G. H. D. W. Biao Fu, "A comparative study on the mineralogy, chemical speciation, and combustion behavior of toxic elements of coal beneficiation products," Fuel, vol. 228, pp. 297-308, 2018.
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[9] S. P. K. U. M. L. T. K. Rutt Hints, "Metal enrichment in lithologically complex black shales: a case study from the Tremadocian of NE Estonia," Estonian Journal of Earth Sciences, vol. 70, no. 1, p. 36–50, 2021.
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[12] Y.-F. Z. Richard J. Haynes, "Chapter Five - Retention of heavy metals by dredged sediments and their management following land application," in Advances in Agronomy, D. L. Sparks, Ed., Academic Press, 2022, pp. 191-254.
[13] S. F. Sabag, "Technical Report on The Polymetallic Black Shale SBH Property Birch Mountains, Athabasca Region, Alberta, Canada., prepared for Dumont Nickel Inc.," 2008.
[14] C. W. Z.-g. D. M.-t. L. X.-b. L. G. F. Cun-xiong LI, "Recovery of vanadium from black shale," Transactions of Nonferrous Metals Society of China, vol. 20, no. 1, pp. s127-s131, 2010.
[15] H. N. B. A. G. I. A. B. M. A. M. R. A. Fozia Anjum, "Bioleaching of copper, cobalt and zinc from black shale by Penicillium notatum," African Journal of Biotechnology, vol. 8, no. 19, pp. 5038-5045, 2009.
[16] A. A. U. M. B. S. Sangita Mondal, "Froth flotation process and its application," Vietnam Journal of Chemistry, vol. 59, no. 4, pp. 417-425, 2021.
[17] W. X. R. W. Y. L. W. Z. Kanghao Zheng, "Synergistic effects of Triton X-100 and kerosene on the flotation removal of unburned carbon from fly ash," Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 622, 2021.
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Cite This Article
  • APA Style

    Tariq, M., Saqib, S., Iqbal, M. M., Hussain, A., Raza, A. (2026). Upgradation of Chimiari Black Shale Khyber Pakhtunkhawa Region of Pakistan by Froth Floatation. Science Discovery Chemistry, 1(1), 1-8. https://doi.org/10.11648/j.sdc.20260101.11

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    ACS Style

    Tariq, M.; Saqib, S.; Iqbal, M. M.; Hussain, A.; Raza, A. Upgradation of Chimiari Black Shale Khyber Pakhtunkhawa Region of Pakistan by Froth Floatation. Sci. Discov. Chem. 2026, 1(1), 1-8. doi: 10.11648/j.sdc.20260101.11

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    AMA Style

    Tariq M, Saqib S, Iqbal MM, Hussain A, Raza A. Upgradation of Chimiari Black Shale Khyber Pakhtunkhawa Region of Pakistan by Froth Floatation. Sci Discov Chem. 2026;1(1):1-8. doi: 10.11648/j.sdc.20260101.11

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  • @article{10.11648/j.sdc.20260101.11,
      author = {Muhammad Tariq and Shahab Saqib and Muhammad Mansoor Iqbal and Adil Hussain and Ahmad Raza},
      title = {Upgradation of Chimiari Black Shale Khyber Pakhtunkhawa Region of Pakistan by Froth Floatation},
      journal = {Science Discovery Chemistry},
      volume = {1},
      number = {1},
      pages = {1-8},
      doi = {10.11648/j.sdc.20260101.11},
      url = {https://doi.org/10.11648/j.sdc.20260101.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sdc.20260101.11},
      abstract = {Extensive reserves of black shale in Pakistan are enriched with economically important metals such as vanadium (V), titanium (Ti), manganese (Mn), zinc (Zn), rubidium (Rb), and copper (Cu), alongside an appreciable content of organic carbon (OC). This study investigates the effectiveness of flotation techniques in upgrading the content of these metals and OC, while simultaneously examining the behavior of impurities. Two sets of flotation experiments were conducted utilizing kerosene oil as a collector and sodium hydroxide (NaOH) to control pH. Pine oil was introduced as a frothing agent in Experiment-II. The results demonstrate a significant increase in the concentration of total organic carbon (TOC) and TiO2. Experiment-I achieved enrichment ratios of 1.44 for TOC and 1.57 for TiO2, while Experiment-II achieved factors of 1.50 and 1.09, respectively. The flotation process selectively removed impurities such as SiO2, SO3, CaO, and Fe2O3 into the tailing’s fractions of both experiments. Additionally, X-ray fluorescence (XRF) analysis revealed the successful upgrading of ZnO, CuO, and Rb2O, which were detected in either the tailings or concentrate but not in the feed samples. This research highlights the promise of optimized flotation processes for enhancing the value of black shale deposits, providing a foundation for further refinement and industrial application.},
     year = {2026}
    }
    

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  • TY  - JOUR
    T1  - Upgradation of Chimiari Black Shale Khyber Pakhtunkhawa Region of Pakistan by Froth Floatation
    AU  - Muhammad Tariq
    AU  - Shahab Saqib
    AU  - Muhammad Mansoor Iqbal
    AU  - Adil Hussain
    AU  - Ahmad Raza
    Y1  - 2026/03/10
    PY  - 2026
    N1  - https://doi.org/10.11648/j.sdc.20260101.11
    DO  - 10.11648/j.sdc.20260101.11
    T2  - Science Discovery Chemistry
    JF  - Science Discovery Chemistry
    JO  - Science Discovery Chemistry
    SP  - 1
    EP  - 8
    PB  - Science Publishing Group
    UR  - https://doi.org/10.11648/j.sdc.20260101.11
    AB  - Extensive reserves of black shale in Pakistan are enriched with economically important metals such as vanadium (V), titanium (Ti), manganese (Mn), zinc (Zn), rubidium (Rb), and copper (Cu), alongside an appreciable content of organic carbon (OC). This study investigates the effectiveness of flotation techniques in upgrading the content of these metals and OC, while simultaneously examining the behavior of impurities. Two sets of flotation experiments were conducted utilizing kerosene oil as a collector and sodium hydroxide (NaOH) to control pH. Pine oil was introduced as a frothing agent in Experiment-II. The results demonstrate a significant increase in the concentration of total organic carbon (TOC) and TiO2. Experiment-I achieved enrichment ratios of 1.44 for TOC and 1.57 for TiO2, while Experiment-II achieved factors of 1.50 and 1.09, respectively. The flotation process selectively removed impurities such as SiO2, SO3, CaO, and Fe2O3 into the tailing’s fractions of both experiments. Additionally, X-ray fluorescence (XRF) analysis revealed the successful upgrading of ZnO, CuO, and Rb2O, which were detected in either the tailings or concentrate but not in the feed samples. This research highlights the promise of optimized flotation processes for enhancing the value of black shale deposits, providing a foundation for further refinement and industrial application.
    VL  - 1
    IS  - 1
    ER  - 

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Author Information
  • Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan

  • Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan

  • Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan

  • Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan

  • Mining Engineering Department, University of Engineering and Technology, Lahore, Pakistan

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