Adsorption decaffeination
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United States of America Patent
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-
Apr 13, 1982
Grant Date -
N/A
app pub date -
Jun 16, 1980
filing date -
Jun 16, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The process disclosed herein decaffeinates an aqueous caffeine solution by contacting it with a solid caffeine adsorbent which is made more selective to caffeine by a thin layer of a water-immiscible, caffeine-specific solvent. The caffeine is selectively extracted from the aqueous solution, leaving the solubles necessary for a good tasting beverage, by the solid adsorbent. Because the solvent is selective, the coated adsorbent likewise shows selectivity.
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