中温电解制F_2过程中Mg添加剂对阳极极化的影响  

EFFECT OF MAGNESIUM ADDITIVE ON THE ANODE POLARIZATION IN ELECTROLYSIS OF KF·2HF MELT

作　　者：杜森林[1] 苏洪钰 赵连山[1] 殷素云[1] 唐定骧[1] 沈青囊 

机构地区：[1]中国科学院长春应用化学所

出　　处：《原子能科学技术》1995年第6期534-538,共5页Atomic Energy Science and Technology

摘　　要：采用Ｉ－Ｖ曲线法研究中温电解制Ｆ＿２时，阳极溶解Ｍｇ对碳阳极极化的影响。电解过程中阳极溶解的Ｍｇ的浓度达到一定值时，阳极临界电流密度将增加１个数量级。扩大试验结果表明，Ｍｇ添加剂具有抑制和消除阳极效应的作用。试验进一步证实，在大功率阳极处理和Ｍｇ添加剂间存在着抑制和消除阳极极化的协同作用。he influence of Mg additive( as colloidal MgF_2 )generated by anodic dissolution of Mg inKF·2HF melt on the carbon anode polarization and effcet is studied by liner sweep voltammetryWhen a specific amount of the dissolution of Mg in the KF·2HF melt is reached during electrolisisof fluorine,the anode critical current density would increase by a order of magnitud. The pilot ex-perimantal result show that Mg additive is effective for prohibiting and eliminating the anode po-larization and effect.A longer cell life is achieved by simultaneous action of the high power pro-cessing technique and Mg additive.

关 键 词：阳极效应 添加剂 氟 电解制氟 镁 

分 类 号：TQ124.3[化学工程—无机化工]