Cathode block for aluminum refining and method for production thereof
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United States of America Patent
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Nov 27, 2007
Grant Date -
Jun 22, 2006
app pub date -
Feb 28, 2003
filing date -
Oct 7, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A cathode block for aluminum refining containing a calcined coke in a proportion of 15 to 100 wt %, characterized in that the calcined coke is prepared by mixing a heavy oil having a content of quinoline insoluble components of 10 to 25 wt % with 3 to 20 wt % of carbon black, and subjecting the resultant mixture to coking and then calcination. The cathode block for aluminum refining is excellent in resistance to abrasion and thus has a prolonged life.
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