摘要
用Orsat气体分析器和色谱质谱联用仪研究了正常电解和发生阳极效应时钕电解的阳极气体成分 ,探讨了温度、阳极电流密度等对阳极气体组成的影响 ,计算了钕电解的总反应方程式。结果表明 ,正常电解时钕电解的阳极气体主要成分为CO ,另有少量CO2 ,气体组成与铝电解有所不同。电解温度升高 ,CO的相对含量增多 ,电流密度增加 ,CO的相对含量减少。发生阳极效应时 ,利用色谱质谱联用仪首次检测出阳极气体中所含氟碳化合物为CF4 。
The anodic gases composition in neodymium electrolysis in the cases of both normal electrolyzing process and anodic effect happening state was analyzed by means of Orsat analyser and chromatographymass spectrography technique, and the effects of temperature and anodic current density on it were discussed, the final reaction equation was figured out. The results show that the anodic gases consist of large amount of carbon monoxide and some amount of carbon dioxide in normal neodymium electrolysis process, unlike that in aluminum electrolysis. The portion of CO in the gases increases with temperature, but decreases with anodic current density. While an anode effect occurs, using chromatographymass spectrography technique, the fluoride and carbon containing complex compound in the anodic gases was measured to be CF 4.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2001年第6期1118-1121,共4页
The Chinese Journal of Nonferrous Metals
关键词
电解
阳极气体
阳极效应
炼钕
neodymium electrolysis
anodic gas
anode effect
