新疆某铁铅锌多金属矿工艺矿物学研究

Research on Process Mineralogy of the Iron-lead-zinc Polymetallic Ore in Xinjiang

新疆某铁铅锌矿由铅、锌的氧化矿石和原生矿石组成,以铅锌矿物中铅锌的金属量比例计,铅的氧化矿石与原生矿石的比例为51.21%∶48.79%。锌的氧化矿石与原生矿石的比例为57.62%∶42.38%。矿石中铅、锌的工业矿物单一,铅由方铅矿和铅钒组成,锌由闪锌矿和菱锌矿组成,其中含锌矿物闪锌矿、菱锌矿的原生粒度偏细,对锌的回收利用有一定影响。研究发现原生矿石金属量明显高于氧化矿石。试样中氧化矿石的比例大于原生矿石,对铅、锌精矿的质量有较大影响。试样铅锌合量4.08%,按2010年版矿产资源工业要求手册标准,就混合矿石而言其品位稍低,选矿试验完成后,应重视资源的经济评估。

An iron-lead-zinc polymetallic ore in Xinjiang is composed of primary ore and oxidized ore, the metal quantity of lead-oxidized ore to lead-primary ore is 51.21% to 48.79% , and the metal quantity of zinc-oxidized ore to zinc-primary ore is 57.62% to 42.38% in accordance with the metal quantity in the lead mineral and zinc miner- al. The type of the industry minerals of lead and zinc is unitary in the ore, among which the lead mineral is com- posed by the galena and the lead/vanadium,and the zinc mineral is composed by the sphalerite and the smithson- ire. Because the particle size of the sphalerite and the smithsonite is very fine,it has an impact on recycling and uti- lization of zinc. The research discovered that metal quantity of the primary ore is obviously higher than oxidized ore. The proportion of the oxidized ore is higher than primary ore which have a great impact on the quality of the lead and zinc concentrate. The resultant of lead and zinc of test specimen is 4.08%. According to the standard of mineral resource industry request handbook published in 2010, the grade of mixed ore is slightly low, so it should pay atten- tion to the economic assessment of the resources after the beneficiation test.