US PATENT SUBCLASS 585 / 821
.~.~ With measuring, sensing, testing, or recycle of sorbate to same sorption zone

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}
821.~.~ With measuring, sensing, testing, or recycle of sorbate to same sorption zone

DEFINITION

Classification: 585/821

With measuring, sensing, testing, or recycle of sorbate to same sorption zone:

(under subclass 820) Subject matter wherein a positive step of measuring, sensing, or testing a component or parameter of the feedstock, product or sorption zone is recited or in which material sorbed in the process and later desorbed from the sorbent is recycled to the sorption zone, generally to act as a reflux.