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发明公开
CN110142065A 一种除氟阴离子交换树脂及其制备和再生方法 有权

一种除氟阴离子交换树脂及其制备和再生方法
摘要：
本发明公开了一种除氟阴离子交换树脂及其制备和再生方法，其中，制备方法包括以下步骤：(1)配制第一改性盐溶液、第二改性盐溶液，第一改性盐溶液为两性金属盐溶液，第二改性盐溶液为有机溶剂和金属盐溶液的混合溶液；(2)以阴离子交换树脂填充过滤柱，制得阴离子交换柱；(3)在步骤(2)制得的阴离子交换柱中通过过量第一改性盐溶液，使阴离子交换树脂达到平衡状态；(4)使用去离子水淋洗步骤(3)制得的阴离子交换柱，使阴离子交换树脂至中性；(5)在步骤(4)制得的阴离子交换柱中通过过量第二改性盐溶液，使阴离子交换树脂达到平衡状态，得到除氟阴离子交换树脂。
摘要（英）：

The invention discloses fluoride-removal anion exchange resin and preparation and regeneration methods thereof. the preparation method comprises the following steps: (1) a first modified saline solution and a second modified saline solution are prepared, wherein the first modified saline solution is an amphoteric metal salt solution, and the second modified saline solution is a mixed solution of an organic solvent and a metal salt solution; (2) a filtration column is filled with anion exchange resin to prepare an anion exchange column; (3) excessive first modified saline solution passes through the anion exchange column prepared in the Step (2) such that the anion exchange resin reaches an equilibrium state; (4) deionized water is used for leaching the anion exchange column prepared in theStep (3) until the anion exchange resin is neutral; and (5) the excessive second modified saline solution passes through the anion exchange column prepared in the Step (4) such that the anion exchange resin reaches an equilibrium state, and then the fluoride-removal anion exchange resin is obtained.

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