Three-way catalyst for automotive emission control

B - Operations – Transporting – 01 – J

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B01J 21/08 (2006.01) B01D 53/94 (2006.01) B01J 23/10 (2006.01) B01J 23/56 (2006.01) B01J 23/63 (2006.01) B01J 37/02 (2006.01)

Patent

CA 2026752

-18- Abstract of the Disclosure A three-way catalyst for automotive emission control having a mechanical carrier having a support comprised substantially of alumina, a lanthanum oxide coating decorated onto the support, a catalytic compound discontinuously supported on the decorated support having a major constituent of palladium, and a discontinuous phase of titanium oxide on the alumina, lanthana, and catalytic compound composite. The method of making such three-way catalyst for automotive emission control, comprises coating an alumina support with lanthana, impregnating the coated support with a palladium compound to form a discontinuous phase on the lanthana, and impregnating the coated support and catalytic compound with an organo-titania compound to form a discontinuous phase on the lanthana and palladium compound. 4410L

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