赤泥提钛研究现状与展望

Research Status and Prospect on Extracting Titanium from Red Mud

赤泥是氧化铝生产过程中排放的废弃物,属于一种强碱性污染源,由于其中含有多种有价金属,也是一种可利用的二次矿产资源。铝土矿产地和氧化铝品位的不同,也导致赤泥中有价金属的种类和含量存在一定差异,但几乎所有产地的赤泥均含有较高含量的二氧化钛。因此,本文综述了近年来国内外赤泥提钛的研究方法,分析相关的工艺条件和参数,以寻求一种更为经济合理的工艺过程,为我国赤泥高效综合利用和赤泥中钛的有效提取探求一种新的途径。

Red mud is the waste dischanged in the alumina production process,and belong to a strong alkaline source of pollution. As it contains many valuable metals,it is an available secondary mineral resource. Bauxite producing and different grades of alumina,so the types and contents of valuable metals in the red mud also have some differences,but almost all of the origin of the red mud contains a higher content of titanium dioxide. Therefore,in this paper,the methods of extracting titanium from red mud and correlative processing conditions and parameters are summarized. It is to seek a more economical and reasonable process and explore a new way for the comprehensive utilization of red mud in our country and the effective extraction of titanium.