Patent ID: 9199223
Filing Date: 2015-12-01
Classification: B01J,C07D,C07F

Abstract:
1. A supported silver catalyst obtained or obtainable by a process which comprises (a) reacting oxalic acid with an alkali metal base in a solvent to the second equivalence point of oxalic acid to give alkali metal oxalate; (b) reacting the alkali metal oxalate obtained according to (a) with a silver salt in a solvent to give silver oxalate; (c) forming a complex of the silver oxalate obtained according to (b) with a diamine compound in a solvent to give a diamine-silver oxalate complex, (d) adding at least one promoter to the solution obtained according to (c) (e) providing a porous support material, (f) impregnating the porous support material with the solution obtained according to (c) or (d), (g) calcining the impregnated support material obtained according to (f).