US PATENT SUBCLASS 585 / 863
.~.~.~ Interaction with aromatic

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

800  DF  PURIFICATION, SEPARATION, OR RECOVERY {7}
833  DF  .~ By addition of extraneous agent, e.g., solvent, etc. {15}
860  DF  .~.~ N-containing {3}
863.~.~.~ Interaction with aromatic

DEFINITION

Classification: 585/863

Interaction with aromatic:

(under subclass 960) Subject matter wherein the purification or separation is accomplished by interengagement of an agent with an aromatic compound, e.g., by reaching therewith dissolving it, etc.