两种含碳铅锌矿石预先除碳工艺对比研究

The comparative study on two carbonaceous lead-zinc ores using pre-decarbonization

对比四川和内蒙古两个含碳铅锌矿石性质,对两个矿石分别采取相同的预先除碳,然后分别浮选铅、锌的工艺流程。分析比较了采用预先除碳工艺对铅、锌选别的影响,结果表明,四川龙塘铅锌矿石中的碳主要以有机碳存在,而内蒙天宝山铅锌矿石中的碳主要以石墨的形式存在。采用相同的预先浮选除碳工艺,都可以消除碳对铅、锌浮选的影响,但龙塘矿石所得碳产品1可以合并到锌精矿中,而天宝山矿石所得碳产品不能利用。

We compared the lead-zinc ores＇ properties from two places,Sichuan and Inner Mongolia.Predecarbonization was used to remove carbonaceous material in the two ores.And then the selective flotation for lead and zinc was adopted.We compared the effects coming from the process flow above.The results showed that the carbonaceous material in Sichuan Longtang ore was organic carbon and in Inner Mongolia Tianbaoshan was graphite.Using predecarbonization to the two ores could remove carbonaceous material.The carbon product 1 gained from Longtang ore could be mixed with zinc concentrate.But the carbon product 2 gained from Tianbaoshan ore could not be utilized at all.