某多金属硫化矿石的工艺矿物学研究

Study on Process Mineralogy of a Polymetallic Sulfide Ore

某多金属硫化矿石中含铜0.16%、含铅0.86%、含锌2.92%、含铁12.05%,其中铜铅锌以硫化物为主。黄铜矿中铜占总铜的70.5%,方铅矿中铅占总铅的84.9%,闪锌矿中锌占总锌的90.4%,磁铁矿、磁赤铁矿中铁占总铁的49.5%。矿石中未见磁黄铁矿。磁铁矿、磁赤铁矿粒度略粗于闪锌矿、方铅矿、黄铜矿。根据该矿石性质,若采用优先浮选铜铅锌、浮选尾矿磁选综合回收铁的工艺流程,仅增加少量投资,即可较大幅度地提高矿山企业的经济效益,充分利用矿产资源。

The sample of a polymetallic sulfide ore tested contained 0.16% Cu, 0.86 % Pb,2.92% Zn and 12.05 % Fe respectively. Copper,lead and zinc are mainly occurred in sulfides. About 70.5% Cu,84.9% Pb and 90.4% Zn of the sample are occurred in chalcopyrite, netite and maghemite, of which granularity are pyrrhotite was not determined. If a combined galena and sphalerite,respectively. 49.5% iron is occurred in magcoarser than chalcopyrite,galena and sphalerite. In this sample, the technological flowsgeet of ＂selective flotation of Cu - Pb - Zn sul- fides-magnetic separation of the flotation tailings for recovering iron＂ is adopted, it will enable mining enterprises to greatly increase economic benefits under the condition of additional minor investment cost and make full use of mineral resources.