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Shvoong Home>Science>Direction and Measures of Development in Production of Carbon Used Inaluminum Reduction in China Summary

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Direction and Measures of Development in Production of Carbon Used Inaluminum Reduction in China

Article Abstract by: TsingHua     


The present technical situation and problems in production of carbon used in aluminum reduction in China is analyzed.The
products are not as good as those produced in developed countries due to backward in technology and some equipment.As for the prebaked anode,bulk density is low,electric resistance high,compressive strength low,and abscission of carbon slag high,resulting in high net carbon consumption in aluminum reduction(e.g.450-48 kg/t-al,while 390-420 kg/t-Al in foreign aluminum smelters);and as for cathode block,resistance to sodium penetration is low,heat expansion rate high,electric resistance high,resulting in deformation of pot bottom and shorter service life(e.g.less than 1200 days for higher amperage prebaked anode pots,while 2500-3000 days for foreign pots) .In order to improve the product quality and reach or surpass the advanced world level,the development direction in production in production of carbon used for aluminum reduction in China is proposed and measures to be taken in process technology and equipment selection are discussed.
Published: January 01, 2003
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