Zirconium/Praseodymium Oxide NOx Traps and Prufication of Gases Containing Nitrogen Oxides (NOx) Therewith
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Issued Date -
Jul 30, 2009
app pub date -
Sep 8, 2006
filing date -
Sep 12, 2005
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Abandoned
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Abstract
and a compound based on zirconium oxide and praseodymium oxide in a proportion of praseodymium oxide ranging from 5 wt. % to 50 wt. % of oxide; such compound may further include cerium oxide and the subject process is useful for treating the exhaust gas of a Diesel or lean mixture gasoline internal combustion engine.
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