The Mount Isa zinc-lead-silver-copper Mine is the one of the large mining and metallurgical industry. To the end of June 2007 Mount Isa Zinc-Lead-Silver Mine has the proved and probable copper ore reserves of 84 Mt containing 1. 8% ~3.4% Cu as well as the proved and probable zinc-lead-silver ore reserves of 84 Mt containing 4. 8% ~ 8. 8% zinc ,2. 2% ~ 5. 5% lead and 39 ~ 125g/t silvero The copper orebody worked using a sub-level open stoping. Stopes are backfilled with cemented aggregate. The zinc-lead-silver orebody worked using a sub-level open stoping and cut-and-fill. The copper concentrator uses SAG/ball mill-preflotation of easy flotation minerals - copper roughing - column cleaning - recleaning flowsheet to obtain copper concentrates. The zinc-lead-silver concentrator uses rod mill/ball mill-lead roughing - regrinding in Isa mills - lead cleaning - preflotaion - zinc roughing - regrinding in Isa mills - zinc cleaning flowsheet to obtain zinc concentrates and lead concentrates containing silver. In 2007 production measure of Mount Isa zinc-lead-silver-copper mine was 6. 7Mt/a of copper ore,6. 5Mt/a of zinc-lead-silver ore,226529t/a of zinc (in zinc concentrates) , 125195 t/a lead bullion, 8. 26 Moz/a of sil-ver(in crude) ,172552t/a copper(in copper concentrates)and 217907t/a copper anode.%澳大利亚蒙特艾萨锌-铅-银-铜矿山是澳大利亚大型矿冶企业之一.它由两个独立的锌—铅—银矿山和选矿厂,以及铜矿山和选矿厂组成.截至2007年6月底,证实和控制的铜矿石储量为8400万t,含铜1.8％～3.4％；锌—铅—银矿石储量为8400万t,含锌4.8％～8.8％,铅2.2％ ～5.5％和银39～125g/t.铜矿山采用分段空场采矿法开采矿石；锌-铅-银矿山采用分段空场采矿法和落顶充填采矿法开采矿石.铜选矿厂采用半自磨/球磨—易浮矿物预先浮选—铜粗选—浮选柱精选—浮选机再精选工艺流程,得到铜精矿.锌—铅—银矿石选矿工艺流程包括棒磨/球磨—铅粗选—粗精矿艾萨磨再磨—铅精选—浮选铅精矿常温反浮选易浮矿物,获得铅精矿；铅粗选尾矿进行锌粗选—浮选柱精选—粗选尾矿艾萨磨再磨—锌再选—再选精选,获得锌精矿.矿山矿产品产量为铜矿山670万t/a铜矿石,锌—铅—银矿石650万t/a,矿产锌226529t/a(锌精矿)；粗铅锭125195t/a,银826万盎司/a(粗铅锭),阳极铜217907t/a,矿产铜172552t/a(铜精矿).
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