Upgrading iron and removing phosphorus from high-phosphorus iron ore

作者：Zhu De Qing; Chun Tie Jun^*; Pan Jian; Wei Xue Mei

来源：Journal of Central South University(Science and Technology), 2011, 42(3): 568-573.

• Acid leaching
• Dephosphorization
• High-phosphorus iron ore
• Iron recovery
• Ore concentrate
• Phosphorus contents
• Process parameters
• Reduction roasting
• Run of mines
• Solid mass
• Sulfuric acid leaching

The reduction roasting-magnetic separation-sulfuric acid leaching of high-phosphorus iron ores was studied. The process parameters of acid leaching were optimized with rougher iron ore concentrate obtained by reduction roasting-magnetic separation of ROM (run of mine) ores. The effects of various factors on upgrading iron and dephosphorization were discussed in acid leaching. The result shows that the iron ore concentrate, assaying 62.35% iron and 0.20% phosphorus content are achieved at the overall iron recovery of 90.54% and dephosphorization of 87.42% under the conditions of leaching for 2 h, at 2.5 liquid-to-solid mass ratio, 50 kg/t sulfuric acid and 500 r/min agitating speed after the ROM ore with 47.28% iron and 1.59% phosphorus content is pretreated by reduction roasting-magnetic separation.

• 出版日期2011
• 单位中南大学