| abstract |
On gaseous ammonia containing to 1 weight percent of aniline and to 10 weight percent of water is at first countercurrently acted by an ammonia liquor making by its cooling at a temperature lower than 10 degrees of Celsius, and thus treated gaseous ammonia is brought into contact with an activated carbon. Concerning water content variability in the treated ammonia there is effective to adjust the weight ratio of the ammonia liquoir and the aniline present in the ammonia at a value of from 10 to 50 by water addition to the ammonia liquoir. |