| abstract |
(A) a step of reacting oxalic acid and an alkali metal base in a solvent, preferably in water, to the second equivalent point of oxalic acid to obtain an alkali metal oxalate; (b) obtained by (a) A step of reacting the obtained alkali metal oxalate and silver salt in a solvent, preferably in water, to obtain silver oxalate; (c) the silver oxalate obtained by (b) in the solvent A method for producing a supported silver catalyst comprising the step of complexing with a diamine compound, preferably in water, to obtain a diamine-silver oxalate complex. |