微量元素钠对铝用炭阳极质量的影响  

Influence of trace elements Na on quality of carbon anode

作　　者：何鹏[1] 刘卫[2,3] 郑环[2,3] 李仕勇[1] 张念炳[2,3] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003 [2]贵州省铝电解炭素材料工程技术研究中心,贵州贵阳550001 [3]贵州师范大学材料与建筑工程学院,贵州贵阳550014

出　　处：《中国有色冶金》2013年第4期58-60,共3页China Nonferrous Metallurgy

基　　金：贵阳市科技计划(筑科合同[2011101]1-41);贵州省科技计划(黔科合GY字(2011)3028);贵州省国际科技合作计划(黔科合外G字[2011]7029号);贵州省科学技术基金(黔科合J字LKS[2010]15)

摘　　要：就煅后焦中的微量元素钠对炭阳极质量的影响进行单因素试验,对炭阳极的CO_2反应性、空气反应性、空气渗透率和电阻率进行测试。结果表明:Na在(370～870)×10^(-6)时,炭阳极在CO_2中的残极率增大(增幅达9.45%),空气中的残极率降低(低至51.17%),空气渗透率和电阻率均降低;Na>870×10^(-6),炭阳极在CO_2中的残极率降低,在空气中的残极率有所增加,空气渗透率和电阻率均增大。。The single factors test about influence of trace elements Na in calcined petroleum coke on quality of carbon anodes was carried out,and the CO_2 reactivity,air reactivity,air permeability and resistivity of carbon anode were tested.The test results showed that when Na is（370～870）×10^（-6）,the residual anode rate of carbon anode in CO_2 increased to 9.45%,and in the air decreased to 51.17%,and both air permeability and resistivity decreased. However,when Na is above 870×10^（-6）,the residual anode rate of carbon anode in CO_2 decreased,and in air properly increased,and both air permeability and resistivity increased.

关 键 词：炭阳极 微量元素 钠 CO_2反应性 空气反应性 

分 类 号：TF821[冶金工程—有色金属冶金]