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铝电解惰性阳极材料的制备及抗腐蚀研究
STUDIES ON FABRICATION AND CORROSION OF INERT ANODE IN FLUORIDE MELT FOR ALUMINUM ELECTROLYSIS
【摘要】 本文制备了包括以NiO和Fe2O2为基的金属陶瓷和以SnO2为主的氧化物陶瓷的惰性阳极材料,并测试了各种性能。研究选择了两种不同温度的电解质体系,一种是以NaF-AlF3为主的高温体系,电解温度为960℃,另一种是以NaF-KF-AlF3为主的低温体系,电解温度为800℃;在这两种体系中分别进行了电解试验,高温体系的平均腐蚀速率为0.0015cm/h,约是低温体系的2~3倍。
【Abstract】 A number of inert anode materials including NiO-Fe2O3-based cermets and ceramics of SnO2 were fabricated for aluminum electrolysis. Their pro perties were measured separately. The corrosion resistance of these materials was tested during electrolysis in two systems,NaF-AlF3 (high-temperature) and NaF-KF-AlF3(low-temperature ) and the rates of corrosion approximate 0.0015cm/h and 0.0005cm/h respectively, i.e the corrosion in hightemperature system is 2~3 times that in low temperature system.
- 【文献出处】 有色金属 ,Nonferrous Metals , 编辑部邮箱 ,1993年02期
- 【被引频次】10
- 【下载频次】133