US PATENT SUBCLASS 210 / 686
.~.~.~.~.~ Utilizing mixed bed or amphoteric material

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
660  DF  .~ Ion exchange or selective sorption {8}
681  DF  .~.~ Removing ions {4}
683  DF  .~.~.~ Anions {2}
685  DF  .~.~.~.~ Including cation {1}
686.~.~.~.~.~ Utilizing mixed bed or amphoteric material

DEFINITION

Classification: 210/686

Utilizing mixed bed or amphoteric material:

(under subclass 685) Process wherein the separatory material is (a) a mixture of distinct cation exchanging particles and anion exchanging particles, or (b) a single material exhibiting both cation exchanging and anion exchanging properties.