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考察了 7种阴离子交换树脂对L 苹果酸及杂质氯离子的吸附行为。通过静态交换实验 ,初步选择了实验所用树脂 ,同时考察了温度对吸附过程的影响并确定实验在室温下进行 ,在此基础上 ,考察了所选树脂对L 苹果酸、氯离子的动态吸附性能及选择性能 ,选择D30 1为提纯L 苹果酸的树脂 ,对模拟生产中混合料液的质量浓度的L 苹果酸溶液进行分离 ,在 pH =3 4,流速为 2mL/min左右时 ,经处理后的料液中检测不到氯离子
The adsorption behavior of 7 kinds of anion exchange resins on L-malic acid and impurity chloride ions was investigated. Through the static exchange experiment, the resin used in the experiment was preliminarily selected, and the influence of temperature on the adsorption process was also investigated. The experiment was carried out at room temperature. On the basis of this, the dynamic adsorption properties of L-malic acid and chloride ion And choose the performance, choose D30 1 as the L malic acid resin, the mass concentration of L malic acid solution of the mixed liquor in the simulated production is separated and treated at pH = 34 and the flow rate is about 2 mL / min Of the liquid chlorine can not be detected