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A survey of a SAG-ball mill circuit processing ore from primary crushing showed size reduction of circuit SAG feed F 80 of approximately 165,000 181m to flotation circuit feed cyclone overflow P 80 of 125 181m. The total specific energy input for the two milling stages was 14.6 kWh t 1. Calculate the operating work index for the circuit.
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A survey of a SAG-ball mill circuit processing ore from primary crushing showed size reduction of circuit SAG feed F 80 of approximately 165,000 181m to flotation circuit feed cyclone overflow P 80 of 125 181m. The total specific energy input for the two milling stages was 14.6 kWh t 1. Calculate the operating work index for the circuit.
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