| 摘要 |
PURPOSE: A stabilized silver catalyst and a method thereof are provided to include more than one metallic ion having electric potential reducing zero-valent silver, 4-dimethylaminopyridine and silver ion into zero-valent silver. CONSTITUTION: Stabilized silver catalyst includes more than one metallic ion having electric potential reducing zero-valent silver, 4-dimethylaminopyridine and silver ion into zero-valent silver. More than one metallic ion having electric potential reducing silver ion into zero-valent silver is selected from tin ion, iron ion and titanium ion. 25 ppm to 1000 ppm of the zero-valent silver exists. 0.2 g/L to 20 g/L of 4-dimethylaminopyridine is contained in the silver catalyst.
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