粉煤灰作为燃煤电厂的工业固体废弃物之一,其综合利用率一直受到很大的关注,而将粉煤灰作为一种非传统的人为氧化铝资源近几年来已经成为一个研究热点,从粉煤灰中提取氧化铝能够降低粉煤灰环境污染的风险,同时符合国家循环经济的发展要求.本文综述了以粉煤灰为原料制备氧化铝的潜在应用方法,评述了烧结法、酸浸取/焙烧法、其他新工艺的特点、反应原理、优点以及其存在的缺陷.最后总结了目前粉煤灰提取氧化铝亟待解决的关键问题.
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