Abstract
Liberation size can be estimated using various techniques such as grain counting, frequency curves, X-ray intensity and the mesh of grind. The present investigation deals with the estimation of the liberation size of graphite flake contained in a schistose ore from Shivaganga, India. It was observed that the flakes are liberated at from 75 to 150 µm. The rougher flotation concentrate obtained after grinding the run-of-mine ore for 5 min contained 54% fixed carbon. This represented the first stage of liberation. After regrinding to <90 µm in the presence of sodium silicate and guar gum, a cleaner concentrate containing 82% fixed carbon was obtained.
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Nonmeeting paper 96-649.
Discussion of this peer-reviewed and approved paper is invited and must be submitted to SME prior to Feb. 28, 1998.
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Patil, M.R., Shivakumar, K.S., Prakash, S. et al. Estimation of the liberation size of graphite in a schistose rock and its response to beneficiation. Mining, Metallurgy & Exploration 14, 41–44 (1997). https://doi.org/10.1007/BF03402777
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DOI: https://doi.org/10.1007/BF03402777