Catalyst blends

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United States of America Patent

PATENT NO 9999876
SERIAL NO

15461558

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Abstract

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Provided is a catalyst for the selective reduction of NOx comprising a two molecular sieve materials having a CHA structure, wherein the first molecular sieve has a mean crystal size of about 0.01 to 1 μm and the second molecular sieve has a mean crystal size of about 1-5 μm, and wherein the first molecular sieve contains a first extra-framework metal, the second molecular sieve contains a second extra-framework metal, and wherein said first and second extra-framework metals are independently selected from the group consisting of cesium, copper, nickel, zinc, iron, tin, tungsten, molybdenum, cobalt, bismuth, titanium, zirconium, antimony, manganese, chromium, vanadium, niobium, and combinations thereof.

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Patent Owner(s)

  • JOHNSON MATTHEY PUBLIC LIMITED COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blakeman, Philip Gerald Shanghai, CN 28 630
Chandler, Guy Richard Royston, GB 90 1076
Chen, Hai-Ying Wayne, US 120 1087
De, Debnath Malvern, US 7 38
Fedeyko, Joseph Michael Wayne, US 49 453
Green, Alexander Nicholas Michael Royston, GB 34 240
Manning, Wendy Wayne, US 7 38
Mulla, Shadab Audubon, US 8 59

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