| 从粉煤灰中提取氧化铝技术进展 |
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| 引用本文： | 朱辉,谢贤,李博琦,黎洁.从粉煤灰中提取氧化铝技术进展[J].矿产保护与利用,2020,40(6):155-161. |
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| 作者姓名： | 朱辉 谢贤 李博琦 黎洁 |
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| 作者单位： | 昆明理工大学 国土资源工程学院, 云南 昆明 650093 |
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| 基金项目： | 广东省矿产资源开发;国家重点实验室开放基金;云南省应用基础研究计划 |
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| 摘 要： | 粉煤灰是煤燃烧后产生的主要固体废弃物，大量堆积危害严重。从粉煤灰中提取氧化铝能同时解决我国面临的铝资源短缺以及粉煤灰堆积问题。从酸法、碱法、酸碱联合法三个方向综述了当前提取氧化铝的工艺，分析了各种方法的长处与不足，并展望了从粉煤灰中提取氧化铝的前景。
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| 关 键 词： | 粉煤灰 氧化铝 酸法 碱法 酸碱联合法 |
| 收稿时间： | 2020-10-29 |
Current Situation of Alumina Extraction from Fly Ash |
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| Affiliation: | Faculty of Land Resource Engineering, Kunming Uniwersity of Science and Technology, Kunming 650093, China |
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| Abstract: | Fly ash is a main solid waste produced by coal combustion. The large number of accumulation hazards are serious. The extraction of alumina from fly ash can solve the shortage of aluminum fly ash and the accumulation of fly ash in China at the same time. In this paper, some popular processes of extracting alumina from fly ash are reviewed from three general directions: acid method, alkali method and acid-base combination method. The advantages and disadvantages of various methods were analyzed. The prospect of extracting alumina from fly ash was prospected. |
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