3kA钕电解槽温度分布研究

Study on temperature distribution of electrolytic cell of 3kA neodymium

通过设计实验装置在高温电解过程中实际测量了Nd2O3-NdF3-LiF熔盐电解槽内的温度分布,并对电解槽内温度分布特征及其形成的原因进行了分析。研究结果表明:电解槽内温度纵向分布是从上到下先升高再下降,横向分布是从阴极到阳极先下降再升高,电解过程中电化学反应主要集中在电解槽的中部。根据研究结果,可以设计一种能够更耐阳极消耗、降低生产成本的石墨阳极。

The temperature distribution of Nd2O3-NdF3-LiF molten salt were measured by the designed experiment in the process of high temperature electrolysis, and the temperature distribution and its rea- sons for the formation were also discussed. The results show that the temperature distribution rose from top to bottom firstling and then declined along the electrolytic cell and it declined firstly and then in- creased from cathode to anode along the horizontal distribution. The electrochemical reaction mainly concentrates the central of cell. According to the findings, we can design a graphite anode, which is more resistant anode consumption and reduce the cost of production.