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›› 2014, Vol. 14 ›› Issue (1): 157-161.

• 材料工程专栏 • 上一篇    下一篇

由高炉渣酸解废液制备镁铝尖晶石粉体

褚亮 申星梅 王莲贞 李辽沙   

  1. 安徽工业大学教育部冶金减排与资源综合利用重点实验室 安徽工业大学，教育部冶金减排与资源综合利用重点实验室 安徽工业大学，教育部冶金减排与资源综合利用重点实验室 安徽工业大学化工学院
  • 收稿日期:2013-11-07 修回日期:2013-12-18 出版日期:2014-02-20 发布日期:2014-02-20
  • 通讯作者: 申星梅

Preparation of Magnesium Aluminum Spinel Powder with Waste Solution from Acid Leaching of Blast Furnace Slag

CHU Liang SHEN Xing-mei WANG Lian-zhen LI Liao-sha   

  1. Key Laboratory of Metallurgical Emission Reduction & Resources Recycling of Ministry of Education, Anhui University of Technology Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Anhui University of Technology Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Ministry of Education, Anhui University of Technology Anhui Provincial Key Laboratory of Metallurgy Engineering ﹠ Resources Recycling, Anhui University of Technology
  • Received:2013-11-07 Revised:2013-12-18 Online:2014-02-20 Published:2014-02-20
  • Contact: SHEN Xing-mei

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被引次数

3

摘要： 以含Mg2+和Al3+等有价元素的高炉渣酸解提硅废液为原料、尿素为沉淀剂，采用均匀沉淀法制备镁铝尖晶石粉体，研究了其产率及性能. 结果表明，最佳工艺条件为：反应温度100℃，尿素用量为理论用量的10倍，煅烧温度1100℃，保温时间2 h. 加入5%(w) Na2S2O4后，样品中Fe2O3含量从1.70%(w)降到0.49%(w)，除铁率达71.2%，白度增加11度. 产品为富铝型镁铝尖晶石，且杂质含量远低于国家标准.

关键词: 镁铝尖晶石, 沉淀, 尿素, 高炉渣, 废液

Abstract: Magnesium aluminum spinel powder was prepared by homogeneous precipitation method with acid-leaching solution of blast furnace slag containing Mg2+, Al3+ and other valuable components as raw material, and urea as precipitant. According to precursor productivity and properties of magnesium aluminum spinel, the optimal technological conditions were obtained: reaction temperature 100℃, urea dosage 10 times of theoretical dosage, calcination temperature 1100℃ and isothermal treatment time 2 h. After addition of 5%(w) Na2S2O4, the content of Fe2O3 was decreased from 1.70%(w) to 0.49%(w), iron removal rate reached 71.2%, and the whiteness increased 11 degrees. The magnesium aluminum spinel particles were flower and needle-like in shape. The prepared product belonged to alumina-rich spinel series, the content of impurities in the product was below the level of national standard.

Key words: magnesium aluminate spinel, precipitation, urea, blast furnace slag, blast furnace slag, waste solution

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