贫矿;贫矿石
Recovery of Wolfram from Low-grade Ore in Stringer Vein
用浮选工艺回收低品位细脉型黑白钨矿的试验研究
Gold extraction research by heap leaching from low-grade ore
低品位金矿堆浸法提金研究
Using methods of cost-benefit comparision, marginal analysis, sinking cost analysis and opportunity cost, and combining the long-term average trend of mineral product price and production cost, a cut-off grade economical analysis model for the mine low-grade ore utilization is established.
综合地运用成本收益比较法、边际分析法、沉没成本分析法和机会成本法,结合矿产品价格和生产成本的长期平均趋势,建立了矿山低品位矿利用的临界品位的经济分析模型。
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