• Separation characteristics of different size and density fractions in batch coal flotation

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    • Keywords


      Coal flotation; distribution curve; specific gravity of separation; density fractions

    • Abstract


      Batch flotation experiments were carried out using two coal samples to study the behaviour of each size and the density fractions in coal flotation. Different size fractions obtained from sizing of concentrates and tailing were subjected to float and sink analysis using organic liquids. The distribution curve technique was adopted to evaluate the performance of flotation. The results show that selectivity of flotation decreases with decrease in particle size. The specific gravity of separation is influenced more by the level of the frother dosage than by the collector dosage. The specific gravity of separation increases with increase in flotation time. The maximum value attained at infinite flotation time increases with decrease in particle size but the rate at which it is reached decreases.

    • Author Affiliations


      M Vanangamudi1 C Vinod Kumar1 T C Rao1

      1. Department of Fuel and Mineral Engineering, Indian School of Mines, Dhanbad - 826 004, India
    • Dates

  • Bulletin of Materials Science | News

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