Highly Efficient Beneficiation of Low-Grade Iron Ore via ...
2020-2-14 · Low-grade iron ores with high silica content are widely distributed in China, India, and Africa.6,8,37 Moreover, over 7 billion tons of iron ore tailings (TFe ~ 20 mass%, SiO 2 ~ 75 mass%) are produced annually by the rapid development of the iron and steel industry in China.5 Efficient utilization of these resources is of great benefit to the ...