| 高纯胆碱的制备 |
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| 引用本文： | 王伟,张新胜.高纯胆碱的制备[J].化工学报,2008,59(Z1):105-109. |
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| 作者姓名： | 王伟 张新胜 |
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| 作者单位： | 化学工程联合国家重点实验室（华东理工大学） |
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| 摘 要： | 研究了WU64-H型阳离子交换树脂对氯化胆碱中金属离子的去除情况，考查了不同转型剂、料液初浓度及流速对离子交换过程的影响。实验结果表明，在常温条件下，用电子级四甲基氢氧化铵溶液对树脂进行转型，料液初始浓度为2 mol•L-1，流速为5倍床层体积每小时时，提纯效果最好，提纯后氯化胆碱中金属离子的含量均达到要求。在此条件下，对提纯后的氯化胆碱进行电解，电流密度为1000 A•m-2，电解温度为50 ℃，电解结束后，产品胆碱中金属离子的含量均在100 μg•L-1以下，达到工业上高纯胆碱的纯度要求。
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| 关 键 词： | 氯化胆碱 离子交换树脂 提纯 电解 |
| 收稿时间： | 2008-11-10 |
| 修稿时间： | 2008-11-12
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Preparation of high-pure choline |
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| WANG Wei,ZHANG Xinsheng.Preparation of high-pure choline[J].Journal of Chemical Industry and Engineering(China),2008,59(Z1):105-109. |
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| Authors: | WANG Wei ZHANG Xinsheng |
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| Affiliation: | WANG Wei,ZHANG Xinsheng (State Key Laboratory of Chemical Engineering,East China University of Science , Technology,Shanghai 200237,China) |
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| Abstract: | Choline chloride is one of the raw materials to produce high-pure choline.The choline chloride solution contains many kinds of metal ions such as Na~+,K~+,Mg~(2+),Ca~(2+)and so on.Metal ion has a bad influence on the quality of high-pure choline.WU64-H resin was used to eliminate the metal ions in choline chloride.The effects of transformation agent,flow rate and concentration were investigated.Experimental result indicated that,the electron-grade tetramethylammonium hydroxide was the best transformation ag... |
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| Keywords: | choline chloride ion exchange resin purification electrolysis |
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