Abstract: BIF-type iron tailings represent a typical category of iron tailings in China,characterized by high silicon content,low iron content,large reserves,and significant comprehensive utilization value. Currently,they are widely applied in the construction materials sector,yet such utilization falls far short of meeting the demand for resource recovery from the vast accumulation of tailings. In order to promote the high-value utilization of this type of iron tailings,this paper first briefly outlines the properties and utilization trends of BIF-type iron tailings. It then focuses on three key areas of high-value utilization:mineralbased materials,porous materials,and 3D printing materials. The high-value utilization approaches are further categorized into ambient temperature processing,activation processing,and sintering processing. Mechanistic analyses of high-value utilization are provided for each category. Finally,critical factors influencing practical applications are summarized,offering a reference for advancing the high-value utilization of BIF-type iron tailings. 

Key words: BIF-type iron tailings,high-value utilization,quartz,sintering temperature