rNaF·AlF_3-REO熔体与铝液平衡的研究Ⅰ稀土在两相中的浓度平衡  

STUDY ON EQUILIBRIUM BETWEEN rNaF·AlF_3-REO MELT AND LIQUID ALUMINIUM I CONCENTRATION EQUILIBRIUM OF RARE-EARTH IN THE TWO PHASES

作　　者：戚喜全[1] 沈时英[2] 

机构地区：[1]沈阳铝镁设计研究院 [2]东北大学

出　　处：《广东有色金属学报》1993年第2期99-104,共6页Journal of Guangdong Non-Ferrous Metals

摘　　要：根据工业实际情况,研究了稀土在冰晶石(rNaF·AIF_3)-混合轻稀土氧化物(REO)熔体与铝液间的平衡问题.考察了各种因素对稀土在合金与熔盐两相中平衡浓度的影响.给出了两相中稀土平衡浓度与各种因素的关系式,并考察了铝加入量及试样中稀土氧化物含量对稀土还原率的影响.Based on industrial practice,the equilibrium between RE in cryolite- mixed light rare-earth oxide melt and liquid aluminium has been studied.Cryolite ratio, temperature and content of mixed light rare-earth in the sample are chosen as three fac- tors for studying thier influences on equilibrium concentration.The equations of rare- earth equilibrium concentration in the two phases with various factors are given.The in- fluences of the amount of aluminium added and rare-earth oxide content in the sample on rare-earth reduction rate are also studied.

关 键 词：冰晶石 稀土氧化物 平衡 

分 类 号：TF821.051[冶金工程—有色金属冶金]