| abstract |
The invention relates to a method and an apparatus for producing a formate or formic acid from carbon dioxide. A bicarbonate solution (5) comprising at least bicarbonate is formed from a mixture (2) which comprises at least carbon dioxide and which further comprises carbonate, ammonia and/or hydroxide (3), and the bicarbonate solution (5) is treated by a reaction with a metal catalyst in a reactor (8), in which hydrogen and/or carbon monoxide (6) is supplied to the reactor and temperature is 10 - 70 °C and pressure is 1 – 100 bar during the reaction, in order to produce the formate (7), and optionally the formic acid (11) is produced from the formate. Further, the invention relates to the use of the method. |