Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1994-01-07
1996-01-02
Achutamurthy, P.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
585864, 208952, C07C 700
Patent
active
054810582
ABSTRACT:
A process for separating a first component of a composition from a second component of a composition. The process involves contacting the composition with a supercritical fluid comprising 1,1,1,2-tetrafluoroethane or 1,1,1,2,3,3,3-heptafluoropropane, or a mixture thereof, in the supercritical state under conditions and for a time sufficient to remove the first component from the composition.
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Alband Todd D.
Blackwell John A.
Chen Daniel T.
Perman Craig A.
Achutamurthy P.
Brink Robert H.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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