This invention relates to a method for producing an aqueous solution of
free hydroxylamine (HA) by simultaneous countercurrent treatment of a HA
salt with ammonia or ammonia water, then separating the HA by
distillation and reconcentrating the aqueous HA solution in a
countercurrent with a stripping medium. The stripping medium used
according to the invention is a mixture of steam and a non-condensable
inert gas and the process temperature at a defined pressure is controlled
by the quantity of non-condensable inert gas at the column inlet. The
preferred non-condensable inert gas is nitrogen. This results in
increased safety and a reduction in losses of the method for producing
aqueous solutions of free HA.