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  DOI Prefix   10.20431


 

International Journal of Advanced Research in Chemical Science
Volume 6, Issue 5, 2019, Page No: 8-12

Development and Application of New Dry Barrier Powder Refractory for Aluminum Electrolysis Cell

Changlin Li1,2*, Yanfang Wang1,2, Weiguo Bai1,2,Yunfeng Zhou1,2, Lifen Luo1,2, Qingguo Jiao1,2,Dengpeng Chai1,2

1.Zhengzhou nonferrous metals Research Institute Ltd of Chalco Zhengzhou 450041, China.
2.China National Engineering and Technology Research Centre for Aluminium, Zhengzhou 450041,China.

Citation : Changlin Li.,et.al., Development and Application of New Dry Barrier Powder Refractory for Aluminum Electrolysis CellInternational Journal of Advanced Research in Chemical Science 2019, 6(5) : 8-12.


Abstract

In order to ensure the quality of barrier powder refractory, avoid losses caused by using poor quality barrier powder refractory, it is imperative to develop high quality barrier powder refractory. A new dry barrier powder refractory with reacting thickness less than 7mm in 960°X96h test was developed by optimizing the formula. In industrial test, after new dry barrier powder refractory used, electrolytic cell bottom outside surface temperature decreased 37°, cell bottom heat loss decreased 18mV, cell bottom kept clean and cell maintained stable in long term operation, cell voltage reduced 25mV, current efficiency increased 0.2 %, DC power consumption decreased 109 kWh/t-Al, a good energy saving effect was obtained.


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