| abstract |
The invention relates to a device comprising a feed which is arranged below the center of the device, a quenching agent inlet which is arranged above the feed, an outlet which is arranged below the feed, and a discharge which is arranged above the quenching agent inlet, said device having a region provided with one or more packets between the quenching agent inlet and the feed. The device is characterized in that at least one means is provided between the quenching agent inlet and a packet provided between the quenching agent inlet and the feed, said means ensuring the formation of a liquid layer with a height of at least 1 cm. The invention further relates to a method for producing acrylic acid, having a step of oxidizing acrolein, wherein the reaction mixture obtained from the oxidation process is brought into contact with water as the quenching agent in a device according to the invention, and to a composition which can be obtained as a bottom product in the method according to the invention, said composition containing acrylic acid and water. |