A model for predicting dynamic frothability index of dual-frother blends

Authors

  • Arefeh Zahab-Nazouri Department of Mining Engineering, Higher Education Complex of Zarand, Shahid Bahonar University of Kerman, Zarand, Iran
  • Hamid Khoshdast Department of Mining Engineering, Higher Education Complex of Zarand, Shahid Bahonar University of Kerman, Zarand, Iran
  • Sasan Mirshekari Department of Mining Engineering, Higher Education Complex of Zarand, Shahid Bahonar University of Kerman, Zarand, Iran
Abstract:

Dynamic frothability index (DFI) is a characteristic of any frother which presents useful information about frothing properties. The objective of this study is to introduce a prediction model for estimation of DFI value of dual-frother blends. Model uses the DFIs of frothers and mole ratio of weaker frother to calculate the blend’s DFI. The model reliability was confirmed by comparing the experimental and predicted DFIs for different frother blends, including n-butanol/MIBC, ethanol/MIBC, isoamyl alcohol/MIBC, and PPG-250/MIBC, with high determination coefficients (> 95%). A reference chart was also proposed for rapid estimation of DFI of frother mixture.

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Journal title

volume 6  issue 1

pages  119- 124

publication date 2015-02-22

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