Method of producing a dual ion-exchange resin, characterized by the following steps. In the first stage, the sulfonation of cyclohexanone, chlorosulfonic acid is added in an stoichiometric amount at the temperature of 60-80°C. In the second stage, sulfuric acid and/or oleum from 15% to 20% by weight are added at the temperature of 80 -135° C. The resulting cyclohexanone's sulfonation product is reacted with aromatic compounds containing at least three hydroxyl groups (-OH) in the molecule, in an amount of 1 to 5% by weight. The aromatic compound is preferably quercetin-5'-sulfonic acid.
                            生产双离子交换
树脂的方法,其特征在于以下步骤。在第一阶段,
环己酮的磺化过程中,在 60-80°C 的温度下按一定比例加入
氯磺酸。在第二阶段,在 80 -135°C 的温度下加入 15%-20%(按重量计)的
硫酸和/或
发烟硫酸。
环己酮的磺化产物与分子中至少含有三个羟基(-OH)的芳香族化合物反应,反应量为 1%-5%(按重量计)。芳香族化合物最好是
槲皮素-5'-
磺酸。