赤泥中铁回收利用技术研究进展

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摘  要：赤泥是氧化铝厂生产过程中产生的工业性废渣，含有铁、铝、钛等多种金属，具有成分复杂、碱性含量高、含盐高等特点，能有效地实现赤泥的综合利用，实现可持续发展是氧化铝行业发展的迫切需求，文章综述了赤泥中铁提取回收方法与工艺路线的研究进展。

关键词：赤泥;铁回收;综合利用

中图分类号：X75         文献标志码：A          文章编号：2095-2945（2022）01-0138-03

Abstract： Red mud is an industrial waste residue produced in the production process of alumina plant， which contains many kinds of metals such as iron， aluminum， titanium and so on. It has the characteristics of complex composition， high alkaline content and high salt content， so it can effectively realize the comprehensive utilization of red mud. Realizing sustainable development is an urgent need for the development of alumina industry. The research progress of extraction and recovery methods and process routes of iron in red mud are reviewed in this paper.

Keywords： red mud; iron recovery; comprehensive utilization

赤泥是制铝工业提取氧化铝时排出的污染性废渣，具有碱性强、盐分高的特征，主要含有Na2O、CaO、Fe2O3及Al2O3等化合物。（剩余3591字）