电解铝阳极炭块溶液浸渍-蒋汉祥.pdfVIP

电解铝阳极炭块溶液浸渍优化处理 蒋汉祥 朱子宗 陈鹏辉 （重庆大学材料科学与工程学院，重庆，400044 ） 摘要：阳极炭块优化处理的目的是降低炭块孔隙率, 提高其抗氧化性能, 降低阳极消耗; 提高阳 极炭块的导电率, 降低电耗, 提高经济效益和改善环境质量。溶液浸渍处理法: 阳极炭块先用 AlCl3 溶液浸渍，再用氨水浸渍，然后在 950℃进行焙烧处理。研究表明：影响阳极炭块优化处 理质量的主要因素是焙烧时间、溶液浓度和浸渍时间。采用A B C 条件优化处理的阳极炭块与 II II III 空白阳极炭块相比，填充率达到19.06%，电阻率降低幅度高达34.24%。 关键词：阳极炭块；浸渍处理；填充率；电阻率。 Optimization and Treatment on Electrolyze Aluminum Anode Carbon Lump Jiang Hanxiang Zhu Zizong Chen Pengju (College of material science and engineering, Chongqing university, Chongqing) Abstract: How to reduce to small opening ratio and to increase resist oxidation capability and to reduce consume of anode carbon lump, as well as how to improve to electric conductivity ratio and to reduce electric power consumption of anode carbon lump and to increase economy benefit is main purpose on optimization and treatment on electrolyze aluminum anode carbon lump. Immersion method is introduced in this paper. First electrolyze aluminum anode carbon lump is soaked by AlCl3 solution, then is soaked by ammonia, it is treated by roasting at 950℃.The results show: The main factors of effect the quality of electrolyze aluminum anode carbon lump are roasting time ,solution concentration and immersion time. It’s fill ratio is 19.06% , the range of resistance ratio descending is 34.24% under A B C condition comparing to without treatment. II II III Key words: anode carbon lump, immersion treatment, fill ratio, resistance ratio 电解铝用预焙阳极炭块浸渍处理的目的是降低孔隙率，提高抗氧化性能，降低吨铝阳极消 耗，提高阳极炭块导电率，降低吨铝电耗，两者均可降低生产成本，提高经济效益。另外，还 能减少 CO2 的排放量，改善环境质量。目前，国内对阳极炭块的优化处理是加在炭素中添加少 量的锂盐。笔者对炭块溶液浸渍处理进行了研究。 1 阳极炭块的处理现状[1] [2] [3]