Patent ID: 8187992

Claim:
A catalyst system comprising a catalytically active principle incorporated in zeolite crystallites attached to a support or incorporated into a matrix, the crystallites having a diameter of between 20 and 300 nm and said catalytically active principle having a formula corresponding to: CoMn 2 (O)(R—COO) 6 L 1 k1 L 2 k2 wherein: R is an optionally substituted C 1 -C 4 alkyl; L 1 is an optionally substituted nitrogen containing carboxylic acid or carboxylate; L 2 is selected from the group consisting of H 2 O, an optionally substituted C 1 -C 4 alkyl containing carboxylic acid, an optionally substituted C 5 -C 6 cycloalkyl or heterocycle, an optionally substituted C 5 -C 6 heteroaryl or aryl; and k1 is 1, 2, or 3; k1+k2=3; wherein the zeolite has an Si/Al atomic ratio of at least 8.