重庆大学学报2016，Vol.39Issue(4)：50-56,7.DOI:10.11835/j.issn.1000-582X.2016.04.007
含钼铜精矿氧化焙烧-浸出分离钼研究
Study on sepatation of molybdenum ftom molybdenum-containing coppet concenttate by oxidizing toasting-leaching
摘要
Abstract
Absttact: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 , Fe2 O3 ,etc.Then,NaOH and H2 O were added to react with MoO3 ,and Na2 MoO4 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.关键词
黄铜矿/辉钼矿/硫钼铜矿/氧化焙烧/浸出Key words
chalcopyrite/castaingite/molybdenite/oxidizing roasting/leaching分类
矿业与冶金引用本文复制引用
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):50-56,7.基金项目
中国博士后科学基金项目（2014M560734）。Supported by China Postdoctoral Science Foundation（2014M560734）． （）
