An object of the present invention is to provide an effective and efficient process
for the treatment of an inorganic salt containing an organic material which can
solve various problems with the prior art, i.e., process for purifying an inorganic
salt containing an organic material to an extent such that it can be recovered
and re-used from the standpoint of environmental protection and utilization of
resources. An inorganic salt containing an organic material is granulated or subjected
to chemical treatment (mixed with an alkali and/or oxidizing agent), and then subjected
to heat treatment so that it is purified.