Process for recovery of caffeine from activated carbon

Details Process for recovery of caffeine from activated carbon Process for recovery of caffeine from activated carbon

C - Chemistry, Metallurgy

07

D

C07D 473/12 (2006.01) A23F 5/22 (2006.01)

Patent

CA 2100696

PROCESS FOR RECOVERY OF CAFFEINE FROM ACTIVATED CARBON Abstract The invention relates to a process for recovering caffeine from caffeine-loaded activated carbon using a circulated inert gas sweeping stream held at a temperature of 250° to 460°C, in which process the activated carbon is preheated prior to the desorption of the caffeine with heat sources other than the sweeping gas and held during the desorption step at a uniform temperature or at a temperature increas- ing from the inlet to the outlet of the inert gas sweeping stream within the range of 250° to 460°C and the caffeine is subsequently separated from the inert gas sweeping stream by conventional means.

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