青海某矽卡岩型铅锌矿工艺矿物学研究

Study on process mineralogy of a sicarn lead-zinc deposit in Qinghai Province

通过对青海某铅锌矿的工艺进行矿物学研究,查明该矿石岩石类型为矽卡岩型硫化物铅锌矿,铅含量4.65%、锌2.97%,矿石中铁闪锌矿、方铅矿等有用矿物主要呈稀疏浸染状、条带状、团块状与其他金属矿物或脉石矿物呈港湾状接触,甚至相互包裹,部分铁闪锌矿包裹粒度极为细小的黄铜矿,不利于其单体解离,对锌精矿品质造成一定影响.

Based on the study of process mineralogy of a lead-zinc deposit in Qinghai Province,it is found that the rock type of the deposit is a sicarn-type sulfide lead-zinc deposit with 4.65% lead and 2.97% Zn,the useful minerals such as Marmatite and Galena in the ore are mainly in the form of sparse disseminated,banded and massive contact with other metal minerals or gangue minerals,and even envelop each other,part of Marmatite is wrapped with Chalcopyrite with very small particle size,which is disadvan-tageous to the dissociation of its monomer and has certain influence on the quality of zinc concentrate.