A New Technique for Preparation of High-Grade Titanium Slag from Titanomagnetite Concentrate by Reduction-Melting-Magnetic Separation Processing
A New Technique for Preparation of High-Grade Titanium Slag from Titanomagnetite Concentrate by Reduction-Melting-Magnetic Separation Processing
复制标题
钛磁铁矿精矿还原-熔融-磁选制备高品位钛渣新工艺
DOI：
10.1007/s11837-017-2507-3
复制
发表时间：
2017
期刊：
影响因子：
2.6
通讯作者：
Feng Qi Cheng
中科院分区：
文献类型：
--
作者：
Lv Chao;Yang Kun;Wen Shu Ming;Bai Shao Jun;Feng Qi Cheng
提出了一种以攀枝花钒钛磁铁精矿为原料，采用还原-熔融-磁选工艺制取高品位钛渣的新工艺。化学分析，X-射线衍射，扫描电子显微镜结合能量色散光谱被用来表征样品。加入1%的CaO（碱度为1.1）和2%的石墨粉，在1550°C下熔炼金属化球团60 min，可以实现铁、钛渣的有效分离。通过细磨和磁选工艺，可以去除夹杂在渣中的细小铁颗粒。所得高品位钛渣中TiO 2品位达60.68%，总回收率为91.25%，可直接用于硫酸法生产白色钛白。该工艺为攀枝花地区钒钛磁铁精矿的综合利用提供了一种新的途径。
This paper proposes a new technique for preparation of high-grade titanium slag from Panzhihua vanadium titanomagnetite concentrate by reduction–melting–magnetic separation processing. Chemical analysis, x-ray diffraction, and scanning electron microscopy in conjunction with energy-dispersive spectroscopy were used to characterize the samples. The effective separation of iron and titanium slag could be realized by melting metallized pellets at 1550°C for 60 min with the addition of 1% CaO (basicity of 1.1) and 2% graphite powder. The small iron particles embedded in the slag could be removed by fine grinding and magnetic separation process. The grade of TiO2in the obtained high-grade titanium slag reached 60.68% and the total recovery of TiO2was 91.25%, which could be directly applied for producing titanium white by the sulfuric acid process. This technique provides an alternative method to use vanadium titanomagnetite concentrate of the Panzhihua area in China.