钼镍矿提镍渣中钼的浸出试验研究  

EXPERIMENTAL STUDY ON LEACHING OF MOLYBDENUM FROM NICKEL- LEACHING RESIDUE OF Ni-Mo ORE

作　　者：付维琴[1] 杨大锦[1] 刘俊场[1] 廖元双[1] 牟兴兵[1] 彭秋燕[1] 

机构地区：[1]昆明冶金研究院,昆明650031

出　　处：《矿冶》2015年第5期45-48,共4页Mining And Metallurgy

基　　金：云南省应用基础研究计划-青年项目(2012FD078)

摘　　要：采用碱性加压氧化法处理钼镍矿的提镍渣以回收有价金属钼,考察了氢氧化钠浓度、浸出时间、浸出温度、氧分压以及碳酸钠取代率对钼浸出率的影响。试验结果表明,在氢氧化钠浓度为100 g/L,液固比为3∶1,反应时间为2.0 h,浸出温度为80℃,氧分压为700 k Pa,搅拌速度为500 r/min的条件下,钼的浸出率可以达到97%以上。The nickel-leaching residue was treated by alkaline pressure oxidation process for extracting molyb- denum. The effects of sodium hydroxide concentration, leaching time, leaching temperature, oxygen pressure and sodium carbonate substitution fraction on molybdenum leaching rate were studied. The experimental results show that by sodium hydroxide concentration 100 g/L, liquid-solid ratio 3： 1, leaching temperature 80 ℃ , leaching time 2.0 h, oxygen pressure 700 kPa and stirring speed 500 r/min, a molybdenum leaching rate of over 97 % can be reached.

关 键 词：钼镍矿 提镍渣 钼 浸出 

分 类 号：TF841.2[冶金工程—有色金属冶金] TF803.21