Process for producing a supported silver catalyst

US9199223B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Tobias Rosendahl · Mannheim, DE
• Torsten Mäurer · Ludwigshafen, DE
• Cornelia Katharina Dobner · Ludwigshafen, DE
• Andreas Lehr · Monsheim, DE
• Johanna Wanka · Darmstadt, DE

Key dates

• Filing date: Feb 25, 2015
• Grant date: Dec 1, 2015
• Expiry date: Feb 25, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J35/66
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process for producing a supported silver catalyst, which comprises (a) reacting oxalic acid with an alkali metal base in a solvent, preferably water, to the second equivalence point of oxalic acid to give alkali metal oxalate; (b) reacting the alkali metal oxalate obtained according to (a) with silver salt in a solvent, preferably water, to give silver oxalate; (c) forming a complexation of the silver oxalate obtained according to (b) with a diamine compound in a solvent, preferably water, to give a diamine-silver oxalate complex.