US PATENT SUBCLASS 210 / 648
.~.~.~ Including regenerating or rehabilitating the extracting liquid in liquid/liquid solvent or colloidal extraction

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

600  DF  PROCESSES {14}
634  DF  .~ Liquid/liquid solvent or colloidal extraction or diffusing or passing through septum selective as to material of a component of liquid; such diffusing or passing being effected by other than only an ion exchange or sorption process {11}
644  DF  .~.~ Diffusing or passing through septum selective as to material of a component in liquid/liquid solvent or colloidal extraction {2}
648.~.~.~ Including regenerating or rehabilitating the extracting liquid in liquid/liquid solvent or colloidal extraction

DEFINITION

Classification: 210/648

Including regenerating or rehabilitating the extracting liquid in liquid/liquid solvent or colloidal extraction:

(under subclass 644) Process in which the liquid into which a constituent has migrated from the treated liquid is itself treated to remove such constituent and thereby placed in condition for reuse.

(1) Note. The extracting liquid is sometimes referred to as the dialysizing liquid and usually is recycled.