某铀水冶厂生产过程中,在201×7和351阴离子交换树脂的表面形成了结壳,影响了树脂动力学性能。此结壳经 X 射线衍射、电子探针等方法测定,其主要组分为黄钾铁矾,其次为草黄铁矾(以下统称铁矾)。试验表明,控制水冶工艺条件可以防止铁矾形成’结壳可以采用氯化钠加硫酸等溶液洗涤消除,使树脂性能复原。 In a uranium watermelon production process, the formation of crusts on the surface of 201 × 7 and 351 anion exchange resins, affecting the resin kinetic properties. The crusts by X-ray diffraction, electron probe and other methods, the main component of jarosite, followed by kyanite (hereinafter referred to as alum). Experiments show that the control of hydrometallurgical process conditions can prevent the formation of alum alum ’crust can be washed with sodium chloride and sulfuric acid solution to eliminate, the resin performance recovery.