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投稿时间:2013-08-28 修订日期:2013-09-16 录用日期:2013-09-18 网络发布日期:2014-02-25
投稿时间:2013-08-28 修订日期:2013-09-16 录用日期:2013-09-18 网络发布日期:2014-02-25
中文摘要: 对以磷矿浮选后剩余大量高镁低磷尾矿为原料制取氢氧化镁进行研究。结果表明,严格控制盐酸溶解尾矿pH=4,过滤分离后,滤液按n(MgCl2)∶n[Ca(OH)2]=1∶0.7的比例加入氢氧化钙,最后加0.5 mol/L碳酸氢钠溶液,可以获得含量最高达99.6%的碳酸钙及91.5%的氢氧化镁。
Abstract:The preparation of magnesium hydrate from flotation phosphate tailings bearing high magnesium was investigated. The results show that calcium carbonate with 99.6% purity and magnesium hydrate with 91.5% purity are obtained under the following processes including controlled leaching by hydrochloric acid with pH value of 4, filtering separation, adding calcium hydroxide powder with mole ratio of n(MgCl2)∶n[Ca(OH)2]=1∶0.7, and adding 0.5 mol/L sodium bicarbonate solution.
keywords: phosphate tailings magnesium hydrate extraction
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基金项目:贵州省教育厅教学质量提升重点科研项目
| Author Name | Affiliation | |
| Zhoujunhong | southern guizhou national normal college chemistry and Chinese | zuhzoj@aliyun.com |
| Wu xiantong | ||
| Yangdan |
引用文本:
周骏宏,吴先通,杨丹.磷尾矿制氢氧化镁的初步研究[J].有色金属(冶炼部分),2014(3):22-24.
Zhoujunhong,Wu xiantong,Yangdan.Primary Study on Magnesium Hydrate Preparation from Phosphate Tailings[J].Nonferrous Metals (Extractive Metallurgy),2014(3):22-24.
周骏宏,吴先通,杨丹.磷尾矿制氢氧化镁的初步研究[J].有色金属(冶炼部分),2014(3):22-24.
Zhoujunhong,Wu xiantong,Yangdan.Primary Study on Magnesium Hydrate Preparation from Phosphate Tailings[J].Nonferrous Metals (Extractive Metallurgy),2014(3):22-24.

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