1673K下BaO-BaF_2-Cr_2O_3渣系的热力学性质  

Thermodynamic Properties of BaO BaF 2 Cr 2O 3 System Fluxes in 1637K

作　　者：李连福[1,2,3] 姜茂发 金成姬 王文忠 

机构地区：[1]东北大学材料与冶金学院 [2]陈兆平 [3]宝山钢铁(集团)公司

出　　处：《东北大学学报（自然科学版）》1998年第6期558-561,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金

摘　　要：１６７３Ｋ下，采用－ＭｏＣｒ＋Ｃｒ２Ｏ３ＺｒＯ２（ＭｇＯ）｛Ｃｕ＋Ｃｒ｝ａｌｏｙ＋（Ｃｒ２Ｏ３）ｓｌａｇＭｏ＋固体电解质电池测定了ＢａＯＢａＦ２Ｃｒ２Ｏ３渣系中Ｃｒ２Ｏ３的活度．研究结果表明，Ｃｒ２Ｏ３的活度随其浓度升高而升高，随ＸＢａＯ／ＸＢａＦ２升高而降低．根据实验及Ｘ射线衍射结果推测了该渣系的等温相图，并作出了该渣系中Ｃｒ２Ｏ３的等活度图．The solid electrolyte cell -MoCr+Cr 2O 3ZrO 2(MgO){Cu+Cr} alloy +(Cr 2O 3) slag Mo+was used to determine the activities of Cr 2O 3 in BaO BaF 2 Cr 2O 3 ternary system fluxes. Results indicate that the activities of Cr 2O 3 increase with an increase in its content,and decrease with an increase in X BaO / X BaF 2 ratio. An isothermal phase diagram was speculated on the basis of the experimental and X ray diffraction results,an isoactivity diagram was also made about the activity content relations.

关 键 词：渣系 氧化钡 氟化钡 脱磷 不锈钢 冶炼 热力学 

分 类 号：TF764.1[冶金工程—钢铁冶金] TF704.4