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斑岩铜矿,又称细脉浸染状铜矿,是国外最重要的铜矿工业类型之一.这种矿床常呈大型网状脉产出,规模很大,矿石储量可达几亿到几十亿吨.此类矿床一般品位较低.多数矿床原生矿石含铜在0.4%以下,少数可达0.8%或略高,次生富集带含铜可达2%.除铜以外,矿石还含有0.00n%的铜以及银、金、稀有元素等有用组分.据外刊报道,由于矿石中有用组分分布均匀,矿石工艺性能稳定,金属回收率高,同时便于利用最新矿山设备进行机械化露天开采,所以尽管有用组分含量低,但开采细脉浸染型矿石的赢利率仍是很高的.例如在智利、秘鲁和美国,从斑岩铜矿贫矿(含铜0.8～0.9%)获得的金属成本,与铜品位高二到四倍的黄铁矿型和含铜岩矿床相等.又
Porphyry copper, also known as veinlet disseminated copper, is one of the most important copper industry abroad .This deposit is often a large reticulate veins, a large scale, ore reserves up to hundreds of millions to several Billion tons.This deposit generally lower grade.Most deposits of primary ore copper below 0.4%, a few up to 0.8% or slightly higher, secondary enrichment zone containing copper up to 2% .In addition to copper, the ore also Contains 0.00n% of copper and silver, gold, rare elements and other useful components.According to foreign media reports, due to the distribution of useful components in the ore, stable ore technology performance, high metal recovery, and easy to use the latest mining equipment for mechanization In open pit mining, the profitability of exploiting veinlets is still high, despite low levels of useful components, for example in Chile, Peru and the United States, from poor porphyry (0.8 to 0.9% copper) The metal costs obtained are equal to pyrite and copper-bearing rock deposits two to four times the grade of copper.