US PATENT SUBCLASS 585 / 838
.~.~.~ Resolution of feed into more than two different components

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}
836  DF  .~.~ Different, sequentially used agents {3}
838.~.~.~ Resolution of feed into more than two different components

DEFINITION

Classification: 585/838

Resolution of feed into more than two different components:

(under subclass 836) Subject matter wherein three or more different materials, contained in the feedstock to the process, are separated from each other.

(1) Note. Each of the three components may be hydrocarbon, as in the separation of an aromatic, an olefin, and a paraffin contained in the feed, or one or more may be a nonhydrocarbon, such as in removing sulfur-containing and color-forming impurities, separately, from a paraffin, etc.

SEE OR SEARCH THIS CLASS, SUBCLASS:

802+, for a process wherein a feedstock is separated and one of the components is removed by a phenomenon other than addition of an extraneous agent.