Process for recovering caffeine adsorbed to activated carbon

Details Process for recovering caffeine adsorbed to activated carbon Process for recovering caffeine adsorbed to activated carbon

1987-08-06

1989-04-04

Golian, Joseph

Food or edible material: processes, compositions, and products

Processes

Treatment of liquid with nongaseous material other than...

426424, 426427, 426428, 544274, 544275, A23F 522, C07D47312

Patent

active

048185523

ABSTRACT:
This invention relates to a process for recovering caffeine from laden acated carbon by treating the laden activated carbon with an organic acid. In order to achieve good extraction efficiencies, on the one hand, and to avoid problems with the flash point, such as with acetic acid, on the other hand, the process according to the invention is characterized by treating the activated carbon with a mixture comprising at least 65% by weight of acetic acid and at least 2% by weight of citric acid.

REFERENCES:
patent: 4298736 (1981-11-01), Katz et al.
patent: 4443601 (1984-04-01), Karmiol et al.
patent: 4481223 (1984-11-01), Hinman et al.
patent: 4506072 (1985-03-01), Gehrig et al.
patent: 4513136 (1985-04-01), Katz et al.
patent: 4540784 (1985-09-01), Vitzlium et al.
patent: 4548827 (1985-10-01), Katz et al.
patent: 4673743 (1987-06-01), Wilkens

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