US PATENT SUBCLASS 210 / 674
.~.~.~ Utilizing organic regenerant

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}
670  DF  .~.~ Including rehabilitating or regenerating exchange material or sorbent {7}
674.~.~.~ Utilizing organic regenerant

DEFINITION

Classification: 210/674

Utilizing organic regenerant:

(under subclass 670) Process in which the separatory material is contacted with a carbon compound which serves to restore it by elution or exchange.

(1) Note. The carbon compound is one that is classifiable in Class 260, Chemistry of Carbon Compounds, and does not include metal carbonates or cyanides.