| 吸附树脂对紫背天葵的水溶性色素精制研究 |
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| 引用本文： | 高虹,黎碧娜,陈晓霞,梁国超,郑鹏,梁燕文. 吸附树脂对紫背天葵的水溶性色素精制研究[J]. 离子交换与吸附, 2006, 22(2): 175-181 |
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| 作者姓名： | 高虹 黎碧娜 陈晓霞 梁国超 郑鹏 梁燕文 |
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| 作者单位： | 1. 广东轻工职业技术学院轻化工程系,广州,510300
2. 广东工业大学轻工化工学院,广州,510090 |
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| 摘 要： | 研究吸附树脂吸附精制紫背天葵红色素的方法和工艺。以吸附量、解吸量为指标,在pH=7时吸附,确定出S-8极性树脂和盐酸-乙醇溶液为最佳吸附剂和解吸剂。正交动态吸附和解吸实验结果表明,当原花液浓度3g/L,吸附流速3ml/min,树脂床层径高比1:1时,树脂对色素的吸附量最大;以盐酸-乙醇为解吸剂,解吸液用量30ml/g,解吸流速是1/5BV。经树脂吸附精制后的色素色价是未精制色素的3.74倍。
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| 关 键 词： | 紫背天葵 吸附树脂 吸附 解吸 |
| 文章编号： | 1001-5493(2006)02-0175-07 |
| 收稿时间： | 2005-06-03 |
| 修稿时间： | 2005-06-03 |
STUDY ON THE PIGMENT FROM GYNURA BY MACROPOROUS RESIN |
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| GAO Hong,LI Bina,CHEN Xiaoxia,LIANG Guohui,ZHENG Peng,LIANG Yanwen. STUDY ON THE PIGMENT FROM GYNURA BY MACROPOROUS RESIN[J]. Ion Exchange and Adsorption, 2006, 22(2): 175-181 |
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| Authors: | GAO Hong LI Bina CHEN Xiaoxia LIANG Guohui ZHENG Peng LIANG Yanwen |
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| Affiliation: | 1 Department of Chemical Engineering of Guangdong Industry Technical College, Guangzhou 510300, China;2 Faculty of Chemical Engineering and Light Industrial of Guangdong University of Technology, Guangzhou 510090, China |
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| Abstract: | The refining with absorbents of red pigment from Gynura was investigated and the optimal conditions were determined as follows:the best absorbent was S-8 polar resin and the best desorption agent was hydrochloric acid-ethanol solution under pH=7.The Orthogonal absorption and desorption experiment were investigated and the optimal conditions were determined as follows:absorption velocity 3ml/min,the ratio of bed diameter to height 1:1 under the concentration 3g/L;the desorption agent 30ml/g,desorption velocity 0.2 volume of resin bed under the absorption capacity 60.21mg/g.The colourity of the refining pigment was 3.74 times as the original. |
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| Keywords: | Gynura red pigment Resin Adsorption Desorption. |
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