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精矿的纯度(和未来的价格)通常使用更加完善的选矿工艺是能够进一步提高和改善的。对于一定的原矿,比较完善的工艺与比较简单的工艺相比,需要较高的基建费用和生产费用(固定费用F和可变费用V较高)。图1中的M为采矿费用,D=F+u,即选矿费用,M+D是选矿厂的总费用,amP=cu P,即从单位重量的原矿(金属品位a)中所得的精矿(金属品位为c)的价格。(P,精矿中单位金属的价格,是精矿金属品位的函数)。纵座标N
The purity of the concentrate (and its future price) is usually further refined and improved using a more refined beneficiation process. For a certain amount of ore, the relatively perfect process requires a higher capital cost and production cost (higher fixed cost F and variable cost V) than simpler processes. Figure 1, M for mining costs, D = F + u, that is, dressing costs, M + D is the total cost of concentrator, amP = cu P, that is, from the unit weight of the ore (metal grade a) (Metal grade c) price. (P, the price of the unit metal in the concentrate, a function of the grade of the concentrate metal). Ordinate N