Caffeine recovery from supercritical carbon dioxide

Details Caffeine recovery from supercritical carbon dioxide Caffeine recovery from supercritical carbon dioxide

C - Chemistry, Metallurgy

07

D

23/414, 99/80, 2

C07D 473/12 (2006.01) A23F 5/20 (2006.01) A23F 5/22 (2006.01) B01J 19/24 (2006.01)

Patent

CA 1339506

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.

606490

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