Patent ID: 7682425
Filing Date: 2010-03-23
Classification: B01D,C05C,Y02A

Abstract:
1. A method for removing ammonia and dust from a waste gas that occurs during the production of fertilizers, in which method the waste gas is introduced into a first washer, and a cooling gas is introduced into a second washer, and additional water is introduced into the first washer and an aqueous solution is introduced into the second washer, wherein both the waste gas and the cooling gas pass through at least one mist collector before exiting from the respective first and second washer, in each instance, wherein the additional water is first introduced into a fine-washing area of the first washer, delimited by the mist collector on the top and by a liquid-impermeable partition bottom at the bottom, and sprayed onto the at least one mist collector, and the aqueous solution that forms in the fine-washing area is subsequently passed into the second washer.