Palladium-containing catalyst and method for producing same

Details Palladium-containing catalyst and method for producing same Palladium-containing catalyst and method for producing same

2005-06-02

2008-11-04

Witherspoon, Sikarl A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S546000, C568S446000, C568S470000

Reexamination Certificate

active

07446223

ABSTRACT:
The present invention provides: a palladium-containing catalyst which is used for highly selectively or highly productively producing an α,β-unsaturated aldehyde and an α,β-unsaturated carboxylic acid from an olefin or in that way producing an α,β-unsaturated carboxylic acid from an α,β-unsaturated aldehyde; a method for producing the catalyst; and a method for highly selectively or highly productively producing an α,β-unsaturated aldehyde and an α,β-unsaturated carboxylic acid from an olefin or in that way producing an α,β-unsaturated carboxylic acid from an α,β-unsaturated aldehyde. In particular, the present invention resides in a palladium-containing catalyst comprising 0.001 to 0.40 mole of tellurium metal to 1.0 mole of palladium metal. This catalyst can be preferably produced by a method having a step of reducing a compound containing palladium atom in its oxidized state and tellurium atom in its oxidized state by a reducing agent.

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