US PATENT SUBCLASS 585 / 839
.~.~.~ Later agent disengages earlier, e.g., decomplexing agent, etc.

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}
839.~.~.~ Later agent disengages earlier, e.g., decomplexing agent, etc. {1}
840  DF  .~.~.~.~> Later agent is hydrocarbon

DEFINITION

Classification: 585/839

Later agent disengages earlier, e.g., decomplexing agent, etc.:

(under subclass 836) Subject matter in which a later agent is contacted with the product of contacting an earlier agent with the feedstock or feedstock component, e.g., a complex, an extract phase, etc., to reverse the original interaction and release hydrocarbon and the earlier agent.

(1) Note. Where merely the subcombination step or steps of disengagement of a hydrocarbon from a compound or complex is claimed, e.g., decomplexing a Werner complex, the process is considered to be a synthesis processs not a purification process for subclasses 800+.