一、杜瓦尔铜金矿杜瓦尔(Duval)铜金矿位于内华达州北部,我们先后考察了它的铜矿山和金矿山,氧化铜堆浸厂和金回收厂。该矿生产历史较久,早期为一生产硫化铜精矿的矿山,现在转为黄金和氧化铜的开采,拥有年处理铜矿石和废石约150万吨堆浸厂和日处理3200吨矿石金回收 I. Duval Copper-Gold Duval Copper-gold mine is located in the northern part of Nevada. We have examined its copper mines and gold mines, copper oxide heap leaching plants and gold recovery plants. The mine has a long production history and is an early mine producing copper sulfide concentrates. It is now converted to gold and copper oxide mining. It owns about 1.5 million tons of heap leaching copper ore and waste rock, and 3,200 tons of ore gold per day Recycling