Process for recovering caffeine from activated carbon

Details Process for recovering caffeine from activated carbon Process for recovering caffeine from activated carbon

1983-04-18

1985-04-23

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen bonded directly to ring carbon of the purine ring...

544274, C07D47312

Patent

active

045131368

ABSTRACT:
The recovery of caffeine from activated carbon is accomplished according to the present invention by employing an aqueous acetic acid solution, preferably having a concentration of between about 50 and 80%, by weight, and which is capable of competing for the active sites on the carbon occupied by the caffeine to displace at least a portion of the caffeine which is then dissolved in the solvent. After the desired period of contact, preferably at a temperature above 100.degree. C., the caffeine is separated from the solution.

REFERENCES:
patent: 2391981 (1946-01-01), Kremers
patent: 4081563 (1978-03-01), Hudak et al.
patent: 4298736 (1981-11-01), Katz et al.
Chemical Abstracts, Vol. 54, 1960, col. 12720 f-h.

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