The America Red Dog Zinc Mine is the zinc mine with the largest zinc production in the world. It has the world' s largest sources of zinc. To the end of 2009 the mineral deposit has ore reserves of 56.1 million containing 16.6% Zn,4.6% Pb and 86g/t Ag, as well as ore resources of 32.8 million tones containing 13.5% Zn,4.6% Pb and 90g/t Ag. Red Dog mine is a conventional open-pit operation. The average daily mining rate will be 10, 000 tpd of high grade ores. Its stripping ratio ( waste : ore) is 0.8 : 1.0. The concentrator used a conventional SAG mill- selective flotation flowsheet. The zinc concentrates and lead concentrate were obtained. The zinc concentrates contain 55.2% Zn, 3% Pb and 137g/t Ag at zinc recovery of 87%. The lead concentrates contain 56. 1% Pb, 11.7% Zn and 1435g/t Ag at lead recovery of 58%. The capital cost of mine and concentrator approaches US $ 1 billions.%美国红狗锌矿山是世界上现有最大的锌矿山,具有世界上最丰富的锌资源.截至2009年底,该矿山的矿石储量为5610万t,其中含16.6％ Zn、4.6％ Pb和86g/t Ag.另有总资源量为3280万t,其中含13.5％ Zn、4.6％ Pb和90 g,/t Ag.矿山采用常规的露天开采方法开采矿石.平均每天开采1万t/d高品位硫化矿石.剥采比(废石:矿石)为0.8∶1.0.选矿厂采用常规的磨矿-优先浮选铅锌流程,得到含银的铅精矿和锌精矿.获得的锌精矿的锌品位为55.2％,其中含铅3％和含银137g/t,锌回收率为87％.铅精矿的铅品位为56.1％,其中含锌11.7％和含银1435g/t,铅回收率为58％.矿山和选矿厂基本投资约为10亿美元.
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