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本法是攀枝花铁精矿综合利用冶炼新流程之一。该法采用回转窑磁化焙烧消除了攀枝花铁精矿钠化球团在竖炉还原过程中产生“灾难性膨胀”、粉化等引起严重粘结的现象,并顺利地生产了适合竖炉还原要求的磁化球团。试验发现钠化磁化球团中保留适当的硫含量有利于竖炉还原过程中金属铁粒的长大和磁选分离。磁选结果说明本流程能将攀枝花铁精矿中的铁钒钛进行有效的分离。所得铁粉可炼优质钢或作粉末冶金制品,并从钒钛富集料中提取了红钒和钛白。
This law is one of the new comprehensive utilization of smelting of iron ore in Panzhihua. This method uses the rotary kiln magnetization roasting to eliminate the phenomenon of “catastrophic expansion” and pulverization of the sodium-containing pellets of Panzhihua iron ore concentrate in the shaft furnace reduction process, and to successfully produce the suitable shaft reduction requirements Magnetized pellets. It is found that the proper sulfur content in the sodium-containing magnetic pellets is favorable for the growth and magnetic separation of metallic iron particles in the shaft furnace reduction process. The results of magnetic separation show that this process can effectively separate iron vanadium titanium in the iron concentrate of Panzhihua. The resulting iron powder can be refined high-quality steel or powder metallurgy products, and extracted from vanadium-titanium-rich red vanadium and titanium dioxide.