硫化钼镍矿加压氧化浸取钼镍过程.doc

文档介绍：
硫化钼镍矿加压氧化浸取钼镍过程#
张玉慧1,3,金炳界2,裴彦林2**
(1. 昆明理工大学机电工程学院;
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2. 昆明理工大学冶金与能源工程学院;
3. 云南冶金昆明重工股份有限公司)
摘要:对硫化钼镍矿进行了加压氧化浸取钼镍过程研究。结果表明,矿物粒度、氧分压、总
铵浓度、浸出温度和时间对钼、镍的浸出率有显著影响,钼、镍浸出率随矿物粒度的降低和
随氧分压、总铵浓度、浸出温度、浸出时间的增加而增加。最佳工艺条件为:矿物粒度-325
目,氧分压 ,总铵浓度 5M/L,浸出温度 80℃,浸出时间 3h。在该条件下,钼和镍
的浸出率均>95%。
关键词:钼镍矿;加压氧浸;钼;镍;氨
中图分类号:; ;TF811
15
Leaching of Molybdenum and Nickel from Mo-Ni Sulfide
Ores by Pressure Oxide Leaching
ZHANG Yuhui1,3, JIN Bingjie2, PEI Yanlin2
(1. Faculty of mechanical engineering, Kunming University of Science and Technology;
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25
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35
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2. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and
Technology;
3. Yunnan Metallurgical Kunming Heavy Industry Co. Ltd.)
Abstract: Leaching of molybdenum and nickel from Mo-Ni sulfide ores by pressure oxide
leaching was studied. The results show that the effects of particle size, oxygen partial pressure,
ammonium concentration, leaching temperature and time on leaching rate of molybdenum and
nickel are predominant. The leaching rate of molybdenum and nickel increases with a decrease of
particle size and an increase of oxygen partial pressure, ammonium concentration, leaching
temperature and time. The optimal technological conditions are obtained: particle size -325 mesh,
oxygen partial pressure , ammonium concentration 5M/L, leaching temperature 80