鲕状的铁矿石是最重要的铁资源之一。这份报纸从高磷报导铁的恢复用基于煤的减小和磁性的分离的鲕状的铁矿石。metallization 度和铁恢复上的减小温度,减小时间, C/O 鼹鼠比率,和 CaO 内容的影响详细被调查。与 95.82% 的 metallization 度减少了产品的试验性的结果表演能在最佳的条件下面被生产(即,减小温度, 1250 吗??
Oolitic iron ore is one of the most important iron resources. This paper reports the recovery of iron from high phosphorus oolitic iron ore using coal-based reduction and magnetic separation. The influences of reduction temperature, reduction time, C/O mole ratio, and CaO content on the metallization degree and iron recovery were investigated in detail. Experimental results show that reduced products with the metallization degree of 95.82% could be produced under the optimal conditions (i.e., reduction temperature, 1250℃; reduction time, 50 min; C/O mole ratio, 2.0; and CaO content, 10wt%). The magnetic concentrate containing 89.63wt% Fe with the iron recovery of 96.21% was obtained. According to the mineralogical and morphologic analysis, the iron minerals had been reduced and iron was mainly enriched into the metallic iron phase embedded in the slag matrix in the form of spherical particles. Apatite was also reduced to phosphorus, which partially migrated into the metallic iron phase.