In the exploration phase of phosphorus ore, industrial indexes can refer to Table 1 presented a preliminary evaluation of the deposit.
Phosphorus-deficient areas can be considered according to factors such as the mining method of phosphate rock and apatite deposit, the difficulty of mineral processing , the comprehensive utilization of common associated minerals (components) and the combination with mineral fertilizer. The general cut-off grade P 2 O 5 ≥ 2% ~ 4%, industrial grade P 2 O 5 ≥ 6%. Industrial grades can also be appropriately reduced under conditions where macroeconomic benefits permit.
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