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Ion-exchange[3]
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Note(s)
In groups B01J 39/00-B01J 49/00:[3]ion-exchange covers all processes whereby ions are exchanged between the solid exchanger and the liquid to be treated and wherein the exchanger is not soluble in the liquid to be treated;ion-exchange processes cover also ion-exchange in combination with complex or chelate forming reactions In groups B01J 39/00-B01J 49/00, the last place priority rule is applied, i e at each hierarchical level, in the absence of an indication to the contrary, classification is made in the last appropriate place
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