ADDITION OF LITHIUM CARBONATE TO THE ANODE PASTE USED IN SODERBERG CELLS
来源期刊：中国有色金属学报(英文版)1996年第1期
论文作者：Qiu Zhuxian Sun Ting Yue Yaxing Yao Kwangtsung Li Qingfeng Grjotheim Kai Kvande Halvor
文章页码：12 - 15
Key words：lithium carbonate ; anode paste ;Soderberg cell
Abstract: Laboratory studies showed that addition of about 0.5%(in mass) Li2CO3,to the anode used in an aluminium electrolysis cell gave increased wetting of the anode by the cryolite-alumina melt，increased critical current density and reduced anodic overvoltage. The lithium carbonate then acted as acatalyst far the oxidation reactioa between the anode carbon and the oxide-containing ions in the melt. Anade paste containing lithium carbonate has been employed in Chinese aluminium smelters with 62Ka HSS cells. This lead to improved eurrerit efficiency, reduced cell voltage and energy Consumption, as well as fewer anode effects per day.
