(1. 河北科技大學(xué) 理學(xué)院，石家莊 050018；
2. 河北福林源水處理劑有限公司，石家莊 051430)
摘 要: 赤泥是鋁土礦提取氧化鋁過(guò)程中產(chǎn)生的固體粉狀廢棄物，屬?gòu)?qiáng)堿廢渣，大量堆積對(duì)環(huán)境造成嚴(yán)重污染。赤泥除可作為原料整體加以利用外，本身還含有多種有價(jià)金屬，因此綜合利用赤泥有著重要的現(xiàn)實(shí)意義。綜述了從拜耳法赤泥中提取鋁、鐵、鈦、鈧等有價(jià)金屬的研究現(xiàn)狀及存在的問(wèn)題，同時(shí)對(duì)赤泥綜合利用的發(fā)展方向進(jìn)行了展望。
關(guān)鍵字: 赤泥；整體利用；金屬回收；有價(jià)金屬；稀土
（1. College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2. Hebei Fulinyuan Water Treatment Agent Limited Company, Shijiazhuang 051430, China）
Abstract:Red mud is the solid powder waste generated in the process of alumina extraction by bauxite and a strong alkali residue. Mass accumulation of the red mud causes serious pollution to the environment. Red mud not only can be used as raw material as a whole, but also contains a variety of valuable metal elements. Therefore, the comprehensive utilization of red mud has important practical significance. The research status and existing problems of extraction of valuable metal elements such as Al, Fe, Ti and Sc from Bayer red mud were reviewed. At the same time, the development direction of red mud comprehensive utilization was prospected.
Key words: red mud; overall utilization; metal recovery; valuable metal; rare earth
