Sorption of Pyruvic Acid with Weakly Basic Polymer Sorbents  

作　　者：黄少凯 秦炜 戴猷元 

机构地区：[1]State Key Laboratory of Chemical Engineering,Department of Chemical Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Journal of Chemical Engineering》2007年第6期868-871,共4页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No.29836130）.

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.为商业地可得到的弱基本的聚合物吸着剂， D301G 和 D301R 的二种类型的焦葡萄酸酸的举起，在一个宽 pH 范围上并且在 MgSO4 的各种各样的咸度被测量了。焦葡萄酸酸的过载的吸附发生在弱基本的聚合物吸着剂，和过载的模型上的结果表演能预言举起的试验性的数据很好。为 D301G 的过载的价值为 D301R 比那大。为两聚合吸着剂的焦葡萄酸酸的吸附等温线被答案 pH 和 MgSO4 集中极大地从水的答案在水的阶段，和焦葡萄酸酸的高恢复效率影响能在 2 附近在答案 pH 被获得。

关 键 词：pyruvic acid weakly basic polymer sorbents ADSORPTION PH 

分 类 号：O647.3[理学—物理化学]