Table 4 Energy consumptions and lithium grade for −0.6 mm for different processing operations.

From: Effect of calcination on coarse gangue rejection of hard rock lithium ores

Processing options

Energy consumption (kJ/kg)

Li grade % (TDSM) (−0.6 mm)

Li grade % (PF) (−0.6 mm)

Crusher

69

0.28

0.12

Furnace + crusher

2165

0.44

0.16

Furnace + mill (autogenous grinding)

2171

0.72

0.2

Furnace + mill (semiautogenous grinding)

2333

0.76

0.64

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