(under the class definition) Processes directed to (A) the chemical transference of ions from a material to a liquid or solid separatory substance or exchanger which, because of its chemical structure of loosely bound ions, has an affinity for certain ions and gives up some of its own ions to the material, or (B) forming a reversible complex molecule of a chemical agent and metallic ion which complex does not have all or most of the characteristics of the original metallic ion.
(1) Note. It is sufficient for this subclass that the patent disclose that a material is an ion exchange, chelating, or sequestering agent. The function of the material is assumed to be inherent in the process upon the admixture of ingredients.
SEE OR SEARCH CLASS
210, Liquid Purification or Separation,
24+, for process of liquid purification or separation using an ion exchange system and see the "SEARCH CLASS" notes thereunder.
