| 弱碱性树脂吸附分离丙酮酸的特性研究 |
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| 引用本文： | 黄少凯,秦炜,戴猷元.弱碱性树脂吸附分离丙酮酸的特性研究[J].中国化学工程学报,2007,15(6):868-871. |
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| 作者姓名： | 黄少凯 秦炜 戴猷元 |
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| 作者单位： | State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China |
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| 基金项目： | Supported by the National Natural Science Foundation of China （No.29836130）. |
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| 摘 要： | Uptakes of pyruvic acid for two types of commercially available weakly basic polymer sorbents, D301G and D301R, have been measured over a wide pH range and at various salinities of MgSO4. The results show that the overloading adsorption of pyruvic acid occurs on both weakly basic polymer sorbents, and the overloading models can predict the experimental data of uptake very well. The overloading value for D301G is larger than that for D301R. The adsorption isotherm of pyruvic acid for both polymeric sorbents is greatly affected by the solution pH and MgSO4 concentration in the aqueous phase, and a high recovery efficiency of pyruvic acid from aqueous solution can be obtained at the solution pH around 2.
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| 关 键 词： | 聚合物吸附剂 丙酮酸 吸附作用 PH值 |
| 收稿时间： | 2007-05-10 |
| 修稿时间： | 2007-08-18 |
Sorption of Pyruvic Acid with Weakly Basic Polymer Sorbents |
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| HUANG Shaokai,QIN Wei,DAI Youyuan.Sorption of Pyruvic Acid with Weakly Basic Polymer Sorbents[J].Chinese Journal of Chemical Engineering,2007,15(6):868-871. |
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| Authors: | HUANG Shaokai QIN Wei DAI Youyuan |
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| Affiliation: | State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China;State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China;State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | Uptakes of pyruvic acid for two types of commercially available weakly basic polymer sorbents, D301G and D301R, have been measured over a wide pH range and at various salinities of MgSO4. The results show that the overloading adsorption of pyruvic acid occurs on both weakly basic polymer sorbents, and the overloading models can predict the experimental data of uptake very well. The overloading value for D301G is larger than that for D301R. The adsorption isotherm of pyruvic acid for both polymeric sorbents is greatly affected by the solution pH and MgSO4 concentration in the aqueous phase, and a high recovery efficiency of pyruvic acid from aqueous solution can be obtained at the solution pH around 2. |
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| Keywords: | pyruvic acid weakly basic polymer sorbents adsorption pH |
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