甘肃小厂坝铅锌矿选矿试验

摘要

The Pb-Zn sulfide ore of Changba in Gansu province , which belongs to the first workshop in dressing plant , na-ture of this ore is complex dissemination , uneven distribution of galena ,and low recovery rate of lead .According to the case , by using collector D 102 which can strengthen the collecting effect of fine lead mineral and lead mineral rich intergrowth ,re-covery rate of lead have been improved effectively .At the same time, In order to improve the quality of the lead concen-trate,adding some zinc sulfate in lead flotation operation to inhibite sphalerite , and reduce planktonic activated sphalerite , so lead recycling rate increased 2.51%in industrial applications .%厂坝铅锌矿综选一车间所处理矿石属硫化铅锌矿石，方铅矿分布不均匀，嵌布关系复杂，铅回收率偏低。通过采用捕收剂D102加强对细粒级铅矿物及铅矿物富连生体的捕收，有效提高了铅回收率，同时在铅浮选作业添加适量的硫酸锌抑制闪锌矿，以降低闪锌矿的浮游活性，提高了铅精矿质量，最终工业应用铅回收率提高了2．51％。