Method for producing electrically conductive zinc oxide
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United States of America Patent
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Aug 4, 1981
Grant Date -
N/A
app pub date -
May 30, 1979
filing date -
Jun 12, 1978
priority date (Note) -
Expired
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Abstract
A method for producing electrically conductive zinc oxide comprising calcining zinc oxide under an ambient atmosphere in a vessel at a temperature from about 800.degree. to about 1100.degree. C. in a mixture thereof with aluminum oxide or a precursor thereof convertible into the oxide under the conditions of treatment in an amount of about 0.05 to about 5 moles based on aluminum atom therein in relation to 100 moles of zinc oxide in the presence of solid carbon. A further improvement in the method comprises mixing zinc oxide with aluminum oxide powder of not more than about 20 millimicrons in average particle size in the dry form to provide a feed mixture, and calcining the mixture, to provide a highly conductive form of zinc oxide.
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