US PATENT SUBCLASS 585 / 831
.~.~ Cyclic sorbate

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

800  DF  PURIFICATION, SEPARATION, OR RECOVERY {7}
820  DF  .~ By contact with solid sorbent {7}
831.~.~ Cyclic sorbate

DEFINITION

Classification: 585/831

Cyclic sorbate:

(under subclass 820) Subject matter in which an aromatic or alicyclic hydrocarbon is a material retained by the sorbent.