铝电解阳极炭素材料氧化动力学研究  

A STUDY ON OXIDATION KINETICS OF ANODIC CARBONACEOUS MATERIALS IN ALUMINIUM ELECTROLYSIS

作　　者：余忠勤[1] 李国勋[1] 曹蓉江[1] 

机构地区：[1]北京有色金属研究总院

出　　处：《有色金属》1989年第1期57-60,共4页Nonferrous Metals

摘　　要：作者用热重法研究了不同添加剂对铝电解阳极炭素材料氧化速度的作用,从而为筛选催化剂以降低铝电解阳极过电位提供了参考数据。实验表明,碱金属碳酸盐对炭的氧化有较明显的催化作用,碱金属和碱土金属氟化物的催化作用不够明显,硼化物和稀土氧化物有—定的抑制作用。The influence of additives on the oxidation rate of anodic carbonaceous materials used in aluminium electrolysis has been studied by TG method.The results of experiment show that alkali metal carbonate has obvious catalysis on the oxidation of carbon.The catalysis of alkali and alkali-earth metal fluoride is not as intense as that of alkali metal carbonate.Boron compounds and rare-earth oxides have some inhibit- ory action on the oxidation of carbon.

关 键 词：炭素材料 添加剂 无机材料 铝电解阳极 阳极过电位 炭素电极 催化作用 平板模型 石墨 黑色颜料 阳极过程 氧化速度 动力学研究 

分 类 号：TD862[矿业工程—金属矿开采] TF80[矿业工程—矿山开采]