(under subclass 179) Processes in which the alkali metal is contained in a solution used in a process, and has become ineffective to properly function in such a process because of dilution, impurities or other reason, and the solution is then regenerated or rehabilitated to approximately its original state or condition.
(1) Note. The purpose of the processes classified here is merely regeneration. A process for another purpose which includes the subcombination of regenerating a solution is classified with the more comprehensive process. The solutions treated here are generally those used to react with an organic substance such as wood pulp and petroleum.
