| 盐酸浸出赤泥回收铝的研究 |
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| 引用本文： | 王克勤,王皓,李生虎.盐酸浸出赤泥回收铝的研究[J].有色金属(冶炼部分),2012(7):16-18. |
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| 作者姓名： | 王克勤 王皓 李生虎 |
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| 作者单位： | 太原理工大学材料科学与工程学院,太原,030024 |
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| 基金项目： | 国家自然科学基金资助项目（21043009）；产学研合作项目（2011-39） |
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| 摘 要： | 研究了盐酸浸出拜耳法赤泥中铝的过程。考察浸出温度、浸出时间、液固比和酸度对铝浸出率的影响,并进行了赤泥回收铝的工业化试验。结果表明,影响铝浸出率的主次因素依次是浸出温度、液固比、盐酸浓度和浸出时间。赤泥在80℃下进行两段浸出,再经蒸发、除钛、除钙、中和及氢氧化钠溶液溶出,铝浸出率为88.13%,回收率为80.26%。
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| 关 键 词： | 拜耳法 赤泥 铝 盐酸 浸出 回收 |
| 收稿时间： | 2012/3/30 0:00:00 |
| 修稿时间： | 4/1/2012 9:46:00 AM |
Study on Aluminum Recovery from Red Mud with Hydrochloric Acid |
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| WANG Ke-qin,WANG Hao and LI Sheng-hu.Study on Aluminum Recovery from Red Mud with Hydrochloric Acid[J].Nonferrous Metals(Extractive Metallurgy),2012(7):16-18. |
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| Authors: | WANG Ke-qin WANG Hao and LI Sheng-hu |
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| Affiliation: | College of Materials Science and Engineering,Taiyuan University of Technology,Taiyuan,, |
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| Abstract: | The hydrochloric acid leaching process of aluminum from Bayer red mud was studied.The effects of temperature,time,ratio of liquid to solid(L/S) and concentration of hydrochloric acid on aluminum leaching rate were investigated.The industrial experiment of aluminum recovery from red mud was conducted.The results show that factors affecting the rate of aluminum extraction in sequence are temperature,L/S,hydrochloric acid concentration and leaching time.The leaching rate and recovery rate of aluminum from red mud is 88.13% and 80.26% respectively after two-step leached at 80℃,evaporation,de-titanium,de-calcium,neutralization and dissolving with sodium hydroxide solution. |
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| Keywords: | Bayer red mud aluminium hydrochloric acid leaching recovery |
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