难选氧化钼矿提取氧化钼的试验研究  

Experimental Study on the Molybdenum Oxide Extraction From a Refractory Molybdenum Oxide Ore

作　　者：曹耀华[1,2] 高照国[1,2] 刘红召[1,2] 杨绍文[1,2] 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [2]国家非金属矿资源综合利用工程技术研究中心,河南郑州450006

出　　处：《稀有金属与硬质合金》2011年第1期1-3,7,共4页Rare Metals and Cemented Carbides

摘　　要：采用两次循环盐酸池浸的方法提取内蒙古难选氧化钼矿中的氧化钼,矿石含钼1.20%、粒度10～20mm,两次浸出的液固比均控制为0.3,浸出时间均为8h,浸出液盐酸浓度分别为200g/L和220g/L。结果表明,此工艺平均钼浸出率78.80%,氨水中和沉淀回收率96.22%,全流程钼回收率超过75%,产品钼含量为43%。The process of sump leaching with hydrochloric acid for two cycles was adopted to extract molybdenum oxide from a refractory molybdenum oxide ore produced in Inner Mongolia.The ore contains 1.20% Mo,and its particle size is 10~20 mm.The ratio of liquid to solid is controlled at 0.3 during leaching,and leaching duration of either cycle is 8 h.The HCl concentrations of leaching solutios are 200 g/L and 220 g/L,respectively for the first cycle and the second cycle.The results show that the average Mo leaching rate of the above process is 78.80%,the recovery of ammonia neutralization-precipitation process is 96.22%,and Mo content of the product is 43%.

关 键 词：氧化钼矿 循环浸出 盐酸 氨水 MOO3 

分 类 号：TF841.2[冶金工程—有色金属冶金]