Multi-layer catalyst for producing phthalic anhydride
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United States of America Patent
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May 18, 2010
Grant Date -
Mar 13, 2008
app pub date -
May 22, 2005
filing date -
May 29, 2004
priority date (Note) -
Expired
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Abstract
Also described is a preferred process for preparing such a catalyst and the preferred use of the titanium dioxide used in accordance with the invention.
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