红土镍矿硫酸化焙烧-水浸实验研究  

Experimental Study on Laterite-Nickel Ore with Sulfating Roasting-Water Immersion Methods

作　　者：邱沙[1] 车小奎[1] 郑其[1] 段锦[1] 

机构地区：[1]北京有色金属研究总院矿物资源与冶金材料研究所,北京100088

出　　处：《稀有金属》2010年第3期406-412,共7页Chinese Journal of Rare Metals

摘　　要：随着硫化镍矿资源的日益枯竭,红土镍矿的开发利用热潮已经来临。研究了硫酸化焙烧-水浸工艺处理红土镍矿过程中各相关因素的影响,研究表明:某红土镍矿在实验条件为:焙烧温度250℃,焙烧时间2.5 h,水浸温度60℃,水浸时间1 h,水浸固液比1∶8时,酸料比(m.lg-1)0.5∶1,镍的浸出率可以到达76.27%,钴的浸出率达到55.88%。实验效果良好。二次重复浸出实际上抑制了矿物中镍、铁的浸出,而促进了钴的浸出。最后,文章分析了硅酸盐与酸反应的相关特性。With the depletion of sulfide nickel mineral resources,the boom of exploration and utilization of laterite-nickel mine arrived.Correlation factors in sulfating roasting-water immersion craft of processing laterite-nickel ore were studied.The results showed that under the condition of roasting temperature 250 ℃,leaching time 2.5 h,water-immersion temperature 60℃,water-immersion time 1 h,liquid-solid ratio 8∶1,the acid material ratio 0.5∶1,the nickel leaching rate reached to 76.27%,and the cobalt leaching rat...

关 键 词：红土镍矿 硫酸化焙烧 水浸 硅酸盐 

分 类 号：TF815[冶金工程—有色金属冶金]