Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen bonded directly to ring carbon of the purine ring...
Patent
1988-08-05
1991-02-26
Rizzo, Nicholas S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen bonded directly to ring carbon of the purine ring...
210511, A23F 518
Patent
active
049963171
ABSTRACT:
A process and apparatus for caffeine recovery from supercritical carbon dioxide is disclosed. The process involves countercurrent extraction of caffeine from supercritical carbon dioxide with water at pressures in excess of 1,000 p.s.i. in an unpacked extraction column. The apparatus includes an unpacked extraction vessel having a distributor therein for distributing water throughout substantially the entire cross-sectional area of the vessel.
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O'Brien Michael J.
Prasad Ravi
Skiff Ronald H.
Spence Jean E.
Vogel Gerald J.
Donovan Daniel J.
Kraft General Foods Inc.
Marcoux Thomas A.
Rizzo Nicholas S.
Savoie Thomas R.
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