METHOD FOR SEPARATING AMMONIA OUT OF AN ALCOHOLIC SOLUTION IN THE PRESENCE OF CARBONIC ACID COMPOUNDS

摘要

The present invention describes a method of removing ammonia from alcoholic solution in the presence of carbonic acid compounds while avoiding fouling by supplying the solution to be separated to the upper part of a distillation column and adjusting the temperature at the introduction point such that the ammonium salts of the carbonic acid compound in question are soluble in the in question at the top of the distillation column under the operating conditions.

主权项

1. A method of removing ammonia from an alcoholic solution comprising at least one alcohol, one carbonic acid compound and ammonia, the method comprising:
a) introducing the alcoholic solution to a middle, top half or top of a distillation column; and b) adjusting, pressure and temperature at the introduction point such that ammonium salts of the carbonic acid compound are soluble in the alcohol under operating conditions.