铝空气电池电解液制备高纯氧化铝的工艺研究 |
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引用本文: | 施辉献,史春阳,杨亚刚,屈亚松,张磊,俞小花,谢刚.铝空气电池电解液制备高纯氧化铝的工艺研究[J].有色金属科学与工程,2020,11(1):8-14. |
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作者姓名: | 施辉献 史春阳 杨亚刚 屈亚松 张磊 俞小花 谢刚 |
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作者单位: | 1.昆明冶金研究院, 昆明 650503 |
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摘 要: | 随着铝-空气电池应用范围和使用量的扩大,电解液的回收再利用成为了该领域迫在眉睫的问题。文中以铝-空气电池废弃电解液为原料,通过晶种控制沉淀法,加上非常规冶金制得高纯超细氧化铝。主要研究将含有多种杂质的铝酸钠溶液经除杂、晶种分解、酸溶、沉淀、干燥、煅烧、研磨分散制备回收高纯氧化铝,并对产物进行了一系列的表征分析,证明以铝-空气电池废弃电解液为原料可制得形貌规则,纯度在99.99%以上的高纯氧化铝。
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关 键 词: | 铝空气电池电解液 铝酸钠 氢氧化铝 碳酸铝铵 高纯氧化铝 |
收稿时间: | 2019-08-31 |
Study on the process of preparing high purity alumina from aluminum air battery electrolyte |
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Affiliation: | 1.Kunming Metallurgical Research Institute, Kunming 650503, China2.State Key Laboratory of Common Associated Non-ferrous Metal Resources Pressure Hydrometallurgy Technology, Kunming 650503, China3.Faculty of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China |
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Abstract: | With the expansion of the application range and usage of aluminum-air batteries, the recycling of electrolytes has become an urgent issue in this field. In this paper, aluminum-air battery waste electrolyte is used as raw material, and the high-purity ultrafine alumina is prepared by seed crystal controlled precipitation method and unconventional metallurgy. The main research is to remove high-purity alumina from the sodium aluminate solution containing various impurities by impurity removal, seed decomposition, acid solution, precipitation, drying, calcination, grinding and dispersion, and carry out a series of characterization and analysis of the product, it is proved that the high-purity alumina with a purity of 99.99% or more can be obtained by using the waste electrolyte of the aluminum-air battery as a raw material. |
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