Abstract: 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 CF4.
Analysis of anodic gases in neodymium electrolysis
Abstract:
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.