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钽铌矿的有用金属含量极低,原矿品位通常在万分之几以下。目前一般用比色法化验,允许相对误差高达20%,往往导致选矿回收率计算值与实际不符。本文分析原矿和尾矿品位化验误差对回收率计算的影响,探讨合理计算回收率的方法。一、原矿和尾矿品位化验误差对回收率的影响先看原矿品位化验误差对实际回收率的影响。实际回收率算式是ε_实=(Q_精·β)/(Q_原·α)=(γ·β)/α(1) 因Q_原、Q_精系直接称量得到,故γ是可
The useful metal content of tantalum-niobium ore is extremely low, and the ore grade is usually below a few thousandths. The current general colorimetric assay, allowing the relative error of up to 20%, often resulting in the calculated value of mineral processing recovery does not match with the actual. This article analyzes the original ore and tailings grade error on the calculation of the recovery rate of calculation, to explore a reasonable method of calculating the recovery rate. First, the original ore and tailings grade error on the recovery of the test Take a look at the original ore grade test error on the actual recovery rate. The actual recovery rate is calculated as follows: ε_ real = (Q_fine β) / (Q_first · α) = (γ · β) / α (1) Since Q_gen and Q_fine are weighed directly, γ is acceptable