贵州黔北松林钼镍矿地质特征及可行性试验技术

Geologic Features and Feasibility Test Technologies of Guizhou Qianbei Pinewood Molybdenum-Nickel Minerals

贵州松林钼镍矿主要产于下寒武统牛蹄塘组(∈1n)底部"磷块岩(上磷层)之上的金属层",已有多年钼镍矿的开发历史,结合矿石的结构构造和矿石类型,采用镍钼矿→回转窖焙烧→碱浸→除杂→离子交换→酸沉→烘干→钼酸铵工艺生产钼酸铵产品,同时采用富镍渣→制粒→熔炼→低镍锍工艺处理浸出渣生产低镍锍,并使弃渣无害化,这对区内钼矿开发一定会取得良好的经济效益和社会效益。

The Guizhou Pinewood molybdenum-nickel minerals are chiefly generated on “a metal layer above the phosphorite （upper phosphor layer）” at the bottom of the lower Cambrian Niutitang formation （∈1n）. It has many years of molybdenum-nickel minerals-developing history. Ammonium molybdate products are produced with such process as molybdenum minerals→rotary kiln roasting→alkaline leaching→decontamination→ion exchange→acid precipitation→drying-ammonium molybdate production technology and meantime low-nickel mattes are produced by dealing with the leaching residues through the process of preparing nickel-rich residues→pelletizing→smelting based on ore structures and types. In addition, the waste slag is made harmless. This will undoubtedly bring economic and social benefits to the exploration of molybdenum-nickel minerals.