低品位铁矿中铜离子的淋溶规律及环境影响  

The leaching rules of Cu^(2+) in a Low-grade Iron Ores and environmental influence

作　　者：陈铁爻[1] 李虹丽[1] 苏庆平[1] 

机构地区：[1]成都理工大学材料与化学化工学院,四川成都610059

出　　处：《矿产综合利用》2013年第2期67-70,共4页Multipurpose Utilization of Mineral Resources

摘　　要：本文模拟室外酸雨,对某地低品位铁矿堆场样品进行了动态淋溶实验。结果表明在一定酸雨和降雨量条件下,淋溶出的Cu2+浓度与淋滤体积呈指数衰减关系,建立了低品位铁矿中铜的淋溶释放模型。证明了在一定的酸雨环境条件下,铁矿中的铜将逐渐溶出,造成堆放场地毒化,地下水污染等环境影响。The dynamic leaching experiment was carried on the disposal samples of a low-grade iron ore by simulating the outdoor acid rain. The results showed that under the condition of the certain acid rain and rainfall amount there exists the decay relation between the concentration of leached Cu2＋ in leached liquid and the leaching volume. Based on the above results, the leaching model of Cu in low-grade iron ores is established. It is proved that the Cu in the iron ore was gradually leached under the condition of acid rain, which leads to such environmental influence as the poison of the disposal site and the pollution of the underwater.

关 键 词：低品位铁矿 酸雨淋溶 淋溶释放模型 环境影响 

分 类 号：TD98[矿业工程—选矿] O652.4[理学—分析化学]