含钛高炉渣真空减压碳化还原提钛研究

Study on Vacuum Carbonization Reduction of Extraction Titanium from Titanium-bearing Blast Furnace

目前,含钛高炉渣提钛有物理方法、化学方法或物理化学相结合的方法,但均未能实现经济提钛。本研究采用真空碳化含钛高炉渣,真空碳化后采用高梯度磁选的方法提钛,较常压高温碳化提钛,碳化温度至少降低400℃,精矿TiC含量达25%,Ti回收达76%,以期望实现经济提钛。

At present,there are physical methods,chemical methods,and physical and chemical methods for titanium extraction from titanium-bearing blast furnace slag,but none of them can achieve economic titanium extraction.In this study,vacuum carbonized titanium-bearing blast furnace slag was used.After vacuum carbonization,titanium is extracted by high-gradient magnetic separation.Compared with atmospheric carbonization,the carbonization temperature is reduced by at least 400℃,the TiC content of the concentrate is 25%,and the Ti recovery is 76%.