金属化率与还原度关系的探讨及应用  

DISCUSSION AND USE OF RELATIONSHIP BETWEEN METALLIZATION RATE AND REDUCIBILITY

作　　者：刘玉宝[1,2,3] 曹永存[1,2,3] 李明[4] 张先恒[1,2,3] 赵二雄 

机构地区：[1]包头稀土研究院,包头中国014030 [2]瑞科稀土冶金及功能材料国家工程研究中心有限公司,包头中国014030 [3]内蒙古铌冶金工程实验室,包头中国014030 [4]内蒙古工业大学,呼和浩特中国010051

出　　处：《铁合金》2014年第2期22-25,共4页Ferro-alloys

基　　金：国家十一五科技支撑项目;稀土铁铌资源高效利用关键技术开发(2008BAB32B07)

摘　　要：针对铌精矿的选择性还原,推定矿石中的FeO=0,相关的化学反应中的物量平衡单位采用摩尔数,以氧含量的平衡建立相关还原度和金属化率的数学关联函数,推导出还原度和金属化率二者的关系为M=KR+1-K。通过对包头白云鄂博铌精矿选择性还原的实验数据对比表明,当还原度和金属化率二者的关系处于M=R、M=1.5R-0.5以及M=0所围成的区域时,计算数据和实测数据可以很好的吻合,说明所得的关系可以很好地检验金属化率和还原度测定值的准确度以及偏差,进而为实际生产检测工作提供理论指导。Fe0=0 in ore is inferred from the selective reduction of niobium concentrate. Substance equilibrium in relative chemical reaction uses mole number. M=KR＋I-K concluded by establishing mathematical correlation function based on oxygen content equilibrium is the relationship between reducibility and metallization rate. Through the comparison of experiment data of niobium concentrate from Baotou Bayan Obo, the calculated data can be identical to measured data when the relationship between reducibility and metallization rate is located in the enclosed area formed from M=R .M=3/2 R-1/2 and M=0. Accuracy and deviation of metallization rate and reducibility measured value can be tested by above methods. It provides a theoretical direction for practical production.

关 键 词：铌 金属化率 还原度 

分 类 号：TF841.6[冶金工程—有色金属冶金]