中国博士后科学基金项目（2014M560734）。
XIAO Junhui
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, P. R. China;School of Environment and Resource, Southwest University of Scienceand Technology, Mianyang 621010, Sichuan, P. R. China;Sichuan Provincial Non-FerrousTechnology Group Co., Ltd., Chengdu 610081, P. R. China四川攀西地区的含钼铜精矿中，由于钼、铜矿物组成复杂，共生关系紧密，提出了氧化焙烧-浸出工艺进一步分离钼。将试样置入焙烧炉中进行氧化焙烧，使硫化物转化为CuO、MoO3、Fe2O3等氧化物后；添加NaOH、H2O与MoO3反应生成可溶性Na2MoO4，浸出渣作为铜精矿产品。研究结果表明：铜、钼等以氧化物形式赋存于焙烧矿中，氧化焙烧矿中的硫含量较低为0.53%，硫以SO2气相形式挥发；在焙烧温度650℃、焙烧时间120 min、氢氧化钠用量为30%、浸出温度60℃、浸出时间120 min、浸出液固比2∶1的综合条件下，钼的浸出率为94.24%，铜精矿（浸出渣）中铜的质量分数为24.27%，钼分离效果明显。
An oxidizing roasting-leaching flowsheet was proposed to further separate molybdenum because of complex minerals composition and tightness paragenetic relationship of molybdenum and copper in the molybdenum-containing copper concentrate in western Panzhihua of Sichuan province. Samples were put into the roasting furnace to conduct oxidizing roasting, and sulphide ore was oxidized into CuO, MoO3, Fe2O3, etc. Then, NaOH and H2O were added to react with MoO3, and Na2MoO4 was produced, and leaching residue was taken as the copper concentrate. Study results indicate that copper and molybdenum occur in the form of oxide in the roasting ores. The sulfur content is 0.53% in the roasting ores, and sulfur volatilizes in the form of SO2. The leaching ratio of molybdenum is 94.24% and the copper mass fraction in the copper concentrate(leaching residue) is 24.27% when the roasting temperature is 650℃, roasting time is 120 min, NaOH dosage is 30%, leaching temperature is 60℃, leaching time is 120 min, and leaching liquid-solid ratio is 2:1. The effect of molybdenum separation is obvious.
肖军辉,施哲,陈金花.含钼铜精矿氧化焙烧-浸出分离钼研究[J].重庆大学学报,2016,39(4):50-56.
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