Process for producing aluminum oxide powder
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United States of America Patent
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May 29, 2007
Grant Date -
Apr 27, 2006
app pub date -
Oct 14, 2005
filing date -
Oct 18, 2004
priority date (Note) -
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Abstract
To provide a process for producing an aluminum oxide powder, whereby the content of impurities is controlled by a physical means. A process for producing an aluminum oxide powder, which comprises pulverizing electrofused alumina by a batch system and classifying the obtained pulverized product to obtain an aluminum oxide powder different in the content of impurities. It is possible to obtain aluminum oxide of high purity by pulverization to a smaller average particle size and separating a powder having a larger average particle size by classification.
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