化学与生物工程
化學與生物工程
화학여생물공정
CHEMISTRY & BIOENGINEERING
2014年
9期
52-54
,共3页
咖啡因溶液%离子交换树脂%洗脱%回收
咖啡因溶液%離子交換樹脂%洗脫%迴收
가배인용액%리자교환수지%세탈%회수
caffeine solution%ion-exchange resin%elution%recycle
选用不同型号阳离子交换树脂和洗脱剂，对1％咖啡因溶液交换、洗脱过程进行研究。结果表明：相比于724、D-113、D-151树脂，732树脂交换处理量达10 BV，洗脱速度快，单次洗脱浓度可达3.82％；80℃水更适合作为洗脱剂；经过3次叠加交换、洗脱后，1％咖啡因溶液提浓到7.39％，可为工业生产中结晶母液回收咖啡因过程提供参考。
選用不同型號暘離子交換樹脂和洗脫劑，對1％咖啡因溶液交換、洗脫過程進行研究。結果錶明：相比于724、D-113、D-151樹脂，732樹脂交換處理量達10 BV，洗脫速度快，單次洗脫濃度可達3.82％；80℃水更適閤作為洗脫劑；經過3次疊加交換、洗脫後，1％咖啡因溶液提濃到7.39％，可為工業生產中結晶母液迴收咖啡因過程提供參攷。
선용불동형호양리자교환수지화세탈제，대1％가배인용액교환、세탈과정진행연구。결과표명：상비우724、D-113、D-151수지，732수지교환처리량체10 BV，세탈속도쾌，단차세탈농도가체3.82％；80℃수경괄합작위세탈제；경과3차첩가교환、세탈후，1％가배인용액제농도7.39％，가위공업생산중결정모액회수가배인과정제공삼고。
Different types of cation-exchange resins and eluent were used in the ion-exchange and elution process of 1% caffeine solution.Compared with types of 724,D-113 and D-151 resins,732 resin showed an ex-change treatment capacity of 10 BV,a faster elusion rate and single elution concentration of 3.82%.Water with 80 ℃ was more suitable for eluent.Concentration of caffeine solution was elevated from 1% to 7.39% after three times of superimposed exchange elution.The results provided reference for the process of recycling caffe-ine from crystallizing mother solution in industrial production.
