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Flotation of alumina with electrogenerated gas bubbles

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Abstract

Froth flotation of alumina particles was studied by employing electrogenerated oxygen and hydrogen gas bubbles. The effect of current density was studied over a range of 0.1 to 1.6 kA/m2. Compared to hydrogen, the use of oxygen bubbles at any given gas evolution rate resulted in a higher flotation recovery. The existence of an optimum current density for each given particle size was indicated. Flotation at higher current densities resulted in better flotation kinetics, while flotation at lower current densities resulted in better gas utilization.

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Authors and Affiliations

  1. Department of Metallurgical Engineering, Indian Institute of Technology, Bombay, India

    K. Khosla, N. K. Khosla & S. Venkatachalam

  2. Henry Krumb School of Mines, Columbia University, New York, NY, USA

    P. Somasundaran (Member SME, professor)

Authors
  1. K. Khosla
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  2. N. K. Khosla
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  3. S. Venkatachalam
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  4. P. Somasundaran
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Additional information

SME nonmeeting paper 94–648.

Discussion of this peer-reviewed and approved paper is invited and must be submitted, in duplicate, prior to Nov. 31, 1995.

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Khosla, K., Khosla, N.K., Venkatachalam, S. et al. Flotation of alumina with electrogenerated gas bubbles. Mining, Metallurgy & Exploration 12, 132–137 (1995). https://doi.org/10.1007/BF03403092

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