.~ By addition of extraneous agent, e.g., solvent, etc. {15}
835
.~.~ With fractional disengagement from agent by use of other agent
DEFINITION
Classification: 585/835
With fractional disengagement from agent by use of other agent:
(under subclass 833) Subject matter wherein a hydrocarbon-containing feedstock or a portion thereof, engaged with an extraneous agent, e.g., dissolved in a solvent, complexed with a complexing agent, etc., is treated with a second agent to remove a part only of the engaged nonagent material.
(1) Note. The partial disengagement may be followed by treatment for disengagement of more of the same or different nonagent material by the same or different second agent.
(2) Note. The partial disengagement may be for the removal of undesirably engaged material, e.g., washing out of recoverable material which adheres to the complex, etc.
