Mining, Metallurgy & Exploration

, Volume 36, Issue 6, pp 1101–1114 | Cite as

The Order of Kinetic Models, Rate Constant Distribution, and Maximum Combustible Recovery in Gilsonite Flotation

  • Ataallah BahramiEmail author
  • Fatemeh Kazemi
  • Yousef Ghorbani
  • Jafar Abdolahi Sharif


Kinetic models are the most important tool for predicting and evaluating the performance of flotation circuits. Gilsonite is a natural fossil resource similar to an oil asphalt, high in asphaltenes. Here, in order to determine the kinetic order and flotation rate of a gilsonite sample, flotation experiments were carried out in both rougher and cleaner stages. Experiments were conducted using the combinations of oil–MIBC and gas oil–pine oil, with one test without collector and frother. Five kinetic models were applied to the data obtained from the flotation tests using MATLAB software. Statistical analysis showed that the results of the experiment with oil–MIBC were highly in compliance with all models. Kinetic constants (k) were calculated as 0.1548 (s−1) and 0.0450 (s−1) for rougher and cleaner stages, respectively. Rougher and cleaner tests without collector and frother also matched all models well (R2 > 0.98), with k values of 0.2163 (s−1) and 0.284 (s−1), respectively. The relationship between flotation rate constant, maximum combustible recovery, and particle size showed that the maximum flotation combustible recovery and flotation rate were obtained in the size range of −250 + 106 μm in the rougher and cleaner stages. The combustible recovery and flotation rate were higher in the rougher flotation process than in the cleaner stage.


Flotation Kinetic models Gilsonite Bitumen  Asphaltum Iran 


Compliance with Ethical Standards

Conflict of Interest

On behalf of all authors, the corresponding author (Ataallah Bahrami) states that there is no conflict of interest.


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Copyright information

© Society for Mining, Metallurgy & Exploration Inc. 2019

Authors and Affiliations

  • Ataallah Bahrami
    • 1
    Email author
  • Fatemeh Kazemi
    • 2
  • Yousef Ghorbani
    • 3
  • Jafar Abdolahi Sharif
    • 1
  1. 1.Department of Mining EngineeringUrmia UniversityUrmiaIran
  2. 2.University of KashanKashanIran
  3. 3.Mineral Processing and Extractive Metallurgy Department of Civil, Environmental and Natural Resources EngineeringLulea University of TechnologyLuleaSweden

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