电解铝灰铝渣的回收利用现状

Recycling and Utilization of the Electrolytic Aluminium Ash and Slag

在电解铝的生产工艺中产生的熔渣经冷却后成为铝灰铝渣,铝灰铝渣中因具有10%～30%的铝及30%左右的Al2O3等有价成分而使得铝灰铝渣的回收利用越来越受到人们的关注。分析总结了国内外电解铝灰铝渣的回收利用情况及不同回收工艺的方法及优缺点,为铝灰铝渣的回收实现低成本产业化,尤其是利用途径和回收技术提供了重要依据。

Abstract Aluminium ash and slag are produced from molten slag cooling in the electrolytic aluminium produc- tion process, the recycling and utilization of the electrolytic aluminium ash and slag is attracting more and more atten- tion at home and abroad for their valuable components such as 10%-30% aluminium and 30% A1203. The recovery utilization and technology of advantages and disadvantages of the electrolytic aluminium ash have been elaborated in or- der to realize low cost industrialization recovery, especially provide important basis for utilization approach and reco- very technology.