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投稿时间：2013-02-21 修订日期：2013-02-22 录用日期：2013-02-22 网络发布日期：2013-08-22
投稿时间：2013-02-21 修订日期：2013-02-22 录用日期：2013-02-22 网络发布日期：2013-08-22
中文摘要: 采用活性氧化镁从含锰、镁的硫酸盐介质中选择性沉淀富集镍、钴。结果表明，最佳沉淀条件为：浆化后添加理论量2倍的活性氧化镁，反应停留时间6 h，沉淀温度25 ℃。在该条件下，镍、钴沉淀率分别为97.96%和96.43%，沉淀物中镍、钴、锰和氧化镁含量分别为8.51%、13.05%、2.29%和4.97%，当每立方矿浆添加0.2 g絮凝剂AN905时，矿浆平均静态自由沉降速度为180 mm/min。
Abstract:Nickel and cobalt were selectively precipitated and enriched from Mn, Mg containing sulfate medium with active magnesium oxide. The results show that the optimum precipitation conditions include twice of theoretical dosage of active magnesium oxide, reaction time of 6 h, and precipitation temperature of 25 ℃. The precipitation rate of nickel and cobalt is 97.96% and 96.43% respectively. The content of nickel, cobalt, manganese and magnesium oxide in precipitate is 8.51%, 13.05%, 2.29%, and 4.97% respectively. The average static-state free settling velocity of slurry is 180 mm/min with the dosage of flocculant AN905 of 0.2 g/m3.
keywords: active magnesium oxide precipitation nickeliferous laterite copper & cobalt oxide ore nickel and cobalt selective precipitation
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基金项目:国家自然科学基金资助项目（51274044）
| Author Name | Affiliation | |
| RUAN Shu-feng | Beijing General Research Institute of Mining and Metallurgy | ruanshufeng@163.com |
| JU Zhong-jun | ||
| LI Qiang | ||
| WANG Zhen-wen | ||
| WANG Cheng-yan |
引用文本：
阮书锋,居中军,李强,王振文,王成彦.活性氧化镁从硫酸盐介质中选择性沉淀镍钴的研究[J].有色金属（冶炼部分）,2013(9):1-3.
RUAN Shu-feng,JU Zhong-jun,LI Qiang,WANG Zhen-wen,WANG Cheng-yan.Study on Selective Precipitation of Nickel and Cobalt from Sulfate Medium with Active Magnesium Oxide[J].Nonferrous Metals (Extractive Metallurgy),2013(9):1-3.
阮书锋,居中军,李强,王振文,王成彦.活性氧化镁从硫酸盐介质中选择性沉淀镍钴的研究[J].有色金属（冶炼部分）,2013(9):1-3.
RUAN Shu-feng,JU Zhong-jun,LI Qiang,WANG Zhen-wen,WANG Cheng-yan.Study on Selective Precipitation of Nickel and Cobalt from Sulfate Medium with Active Magnesium Oxide[J].Nonferrous Metals (Extractive Metallurgy),2013(9):1-3.
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