发明名称 |
Separate recovery of caffeine and coffee solids adsorbed on activated carbon |
摘要 |
The present invention relates to a method of separately recovering caffeine and non-caffeine solids adsorbed on activated carbon. Activated carbon containing the adsorbed solids is contacted with an aqueous basic solution to elute the non-caffeine coffee solids. The two components are separated. The activated carbon is subsequently contacted with a concentrated aqueous acidic solution to elute the relatively pure caffeine. The two components are separated. The non-caffeine solids in the basic solution may be re-adsorbed onto the activated carbon. Essentially pure caffeine may be refined from the aqueous acidic solution.
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申请公布号 |
US4548827(A) |
申请公布日期 |
1985.10.22 |
申请号 |
US19820363714 |
申请日期 |
1982.03.30 |
申请人 |
GENERAL FOODS CORPORATION |
发明人 |
KATZ, SAUL N.;PROSCIA, GEORGE E.;CLISURA, GEORGE L. |
分类号 |
A23F5/22;C07D473/12;(IPC1-7):A23F5/22 |
主分类号 |
A23F5/22 |
代理机构 |
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地址 |
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