Process for recovering caffeine adsorbed to activated carbon
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United States of America Patent
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Apr 4, 1989
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N/A
app pub date -
Aug 6, 1987
filing date -
Aug 6, 1986
priority date (Note) -
Expired
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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.
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