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Fine Grind Phosphate Rock

Jan 01, 1992 For grinding phosphate rock, the energy used is about 25 35 MJ per tonne and the process water needed is around 13 m3 per tonne while the average values for ore flotation units are 62.5 MJ per tonne and 5.3 m3 per ton for energy and water use, respectively. So far the challenge in the flotation of high carbonate containing sedimentary phosphate.

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