Abstract
The effect of the feed size distribution on the kinetic parameters in pyrite flotation was studied. The kinetic parameters of the particular sizes were determined as a function of whether other particle sizes were present. From the data, a relation between the pyrite flotation rate and the particle size distributions was obtained. It was shown that the flotation rate constant (k) is a function of the size modulus (dt) of the Gates-Gaudin-Schuhmann distribution, and its variation may be expressed as k = a · exp(b · dt) for either individual size fractions or composite feed. Parameters a and b are dependent on the particle size distribution of the feed. Specifically, parameter a increases linearly as the distribution becomes coarser. The above relationship was also tested under conditions in which the collector (KAX) dosage was varied from 130 to 278 g/t. It was shown that the established relation was not dependent on the collector dosage.
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Bayraktar, I., Saklar, S. Investigation of the relationship between the particle size distribution and the kinetic parameters in pyrite flotation. Mining, Metallurgy & Exploration 18, 110–116 (2001). https://doi.org/10.1007/BF03402881
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DOI: https://doi.org/10.1007/BF03402881