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研究了配位原子为氮或氮硫的5种新型功能性树脂对Ru(Ⅳ)的吸附行为(3-氨甲基吡啶树脂(3-AMPR)、吡唑树脂(PAZR)、2-氨甲基吡啶树脂、N-甲基-2-硫咪唑树脂、2-硫-苯骈咪唑树脂的功能基(FG)含量为3.16~4.87mmolFG/g树脂),以及酸度、温度、时间对吸附的影响。测定其吸附容量、吸附比、吸附速率常数、吸附熵、分配系数和洗脱率等参数。3-AMPR有最高的吸附容量1.64mmolRu(Ⅳ)/g3-AMPR和最低的吸附比1.94FG/Ru(Ⅳ)(摩尔比)。吸附在PAZR上的Ru(Ⅳ)可被5%硫脲水溶液:丙酮:盐酸=1:1:2(体积比)的混合溶液洗脱,洗脱率100.3%。化学法,红外谱图阐明了树脂吸附Ru(Ⅳ)的机理。
The adsorption behavior of Ru (Ⅳ) to 5 new functional resins with coordination atoms of nitrogen or nitrogen and sulfur (3-aminomethylpyridine resin (3-AMPR), pyrazole resin (PAZR) (FG) content of 3.16 ~ 4.87 mmol FG / g resin), and the acidity, temperature, time Adsorption effects. The adsorption capacity, adsorption ratio, adsorption rate constant, adsorption entropy, partition coefficient and elution rate were measured. 3-AMPR has the highest adsorption capacity of 1.64mmolRu (Ⅳ) / g3-AMPR and the lowest adsorption ratio of 1.94FG / Ru (Ⅳ) (molar ratio). Ru (Ⅳ) adsorbed on PAZR was eluted with a mixed solution of 5% thiourea aqueous solution: acetone: hydrochloric acid = 1: 1: 2 (volume ratio) Chemical and infrared spectra elucidated the mechanism of resin adsorption of Ru (Ⅳ).