发明授权
- 专利标题： Recovery of caffeine from caffeine adsorbents
- 专利标题（中）： 从咖啡因吸附剂中回收咖啡因
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申请号： US420158申请日： 1982-09-20
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公开(公告)号： US4443601A公开(公告)日： 1984-04-17
- 发明人: Mark H. Karmiol , Gary L. Hickernell , Bertrand J. Hall
- 申请人： Mark H. Karmiol , Gary L. Hickernell , Bertrand J. Hall
- 申请人地址： NY White Plains
- 专利权人： General Foods Corporation
- 当前专利权人： General Foods Corporation
- 当前专利权人地址： NY White Plains
- 主分类号： A23F5/22
- IPC分类号： A23F5/22 ; C07D473/12 ; C07D239/96
摘要：
Caffeine adsorbed on caffeine adsorbents is recovered by contacting the carbon with a solvent, preferably an aqueous solution of ethylene carbonate or propylene carbonate. The caffeine adsorbent is contacted with the solvent for a period time sufficient to remove at least a portion of the caffeine adsorbed thereon and then separated from caffeine-containing solvent. The caffeine may be recovered from the solvent by precipitation.
公开/授权文献
- US5588569A Carrier bag 公开/授权日：1996-12-31