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本文主要叙述了以国产717强碱性阴离子交换树脂为基体,采用甲醛与对苯二酚、邻苯二酚、连苯三酚和2,7-萘二酚等聚合生成氧化还原树脂,它们的氧化还原容量分别为5.3,5.4和5.2meq/g-干树脂.文中还介绍了本类树脂的氧化还原电位测定方法,并据此研究和测定了对苯二酚、邻苯二酚和连苯三酚型树脂的氧化还原电位,这些电位的测定结果与其氧化还原实验事实相符.也研究了多种氧化剂和还原剂与自制树脂的交换性能,讨论了这些树脂容量与交换性能的关系.应用所合成的新树脂进行了从硝酸银废液中回收银和对硫化氢试行氧化脱硫处理试验,效果良好.
This paper mainly describes the domestic 717 strong base anion exchange resin as the matrix, the use of formaldehyde and hydroquinone, catechol, pyrogallol and 2,7-naphthalene diphenol and other polymerization generated redox resins, their Oxidation-reduction capacity of 5.3, 5.4 and 5.2meq / g-dry resin.The paper also introduced the redox potential of this kind of resin determination method, and accordingly study and determination of hydroquinone, catechol and benzene The redox potentials of the triphenol resins and the determination of these potentials are consistent with the redox experiments, and the exchange properties of various oxidants and reducing agents with self-made resins were also studied, and the relationship between the capacity and the exchange properties of these resins was discussed The new synthetic resin has been tested for the recovery of silver from waste silver nitrate and the pilot desulfurization of hydrogen sulphide with good results.