赤泥中鐵回收利用技術(shù)研究進(jìn)展

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摘  要：赤泥是氧化鋁廠生產(chǎn)過(guò)程中產(chǎn)生的工業(yè)性廢渣，含有鐵、鋁、鈦等多種金屬，具有成分復(fù)雜、堿性含量高、含鹽高等特點(diǎn)，能有效地實(shí)現(xiàn)赤泥的綜合利用，實(shí)現(xiàn)可持續(xù)發(fā)展是氧化鋁行業(yè)發(fā)展的迫切需求，文章綜述了赤泥中鐵提取回收方法與工藝路線的研究進(jìn)展。

關(guān)鍵詞：赤泥;鐵回收;綜合利用

中圖分類號(hào)：X75         文獻(xiàn)標(biāo)志碼：A          文章編號(hào)：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

赤泥是制鋁工業(yè)提取氧化鋁時(shí)排出的污染性廢渣，具有堿性強(qiáng)、鹽分高的特征，主要含有Na2O、CaO、Fe2O3及Al2O3等化合物。（剩余3591字）