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摘要:
铝灰主要由氧化铝（Al2O3）、金属铝（Al）、氮化铝（AlN）、镁尖晶石（MgAlO4）、方镁石（MgO）、石英（SiO2）和含有少量碳化物和氮化物的盐熔剂组成。总结了铝灰的形成过程和环境危害。概述了火法冶金方法和湿法冶金方法在回收铝和氧化铝方面的应用，以期提高铝及氧化铝的回收率，从而最大程度地减少铝灰的污染，实现铝灰资源化。
Abstract:Aluminum dross is composed mainly of alumina(Al2O3), metal aluminum(Al), Aluminum nitride(AlN), magnesium spinel (MgAlO4), Periclase (MgO), quartz (SiO2) and molten salt, which contains a small amount of carbides and nitrides. The formation process and environmental hazards of aluminum dross are outlined. The application of pyrometallurgical method and hydrometallurgical method in the recovery of aluminum and alumina is summarized in order to improve the recovery rate of aluminum and alumina, reduce the pollution of aluminum dross to a greatest extent and realize the recycling of aluminum dross.
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Key words:
- aluminum dross /
- pyrometallurgy /
- hydrometallurgy /
- recovery methods
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表 1 铝灰的类型和组成
Table 1. Type and composition of aluminum dross
铝灰类型 金属铝含量/% 氧化铝含量/% 盐含量/% 一次铝灰 15~80 20~85 ＜5 二次铝灰 7~50 30~50 30~50 
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| 引用本文: |
梁诚, 彭建平, 狄跃忠, 王耀武, 冯乃祥. 铝灰中铝及其氧化物回收方法现状[J]. 矿产保护与利用, 2019, 39(3): 37-41. doi: 10.13779/j.cnki.issn1001-0076.2019.03.006
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| Citation: |
LIANG Cheng, PENG Jianping, DI Yuezhong, WANG Yaowu, FENG Naixiang. Research Status of Recovery Methods of Aluminum and Its Oxide in Aluminum Ash[J]. Conservation and Utilization of Mineral Resources, 2019, 39(3): 37-41. doi: 10.13779/j.cnki.issn1001-0076.2019.03.006
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