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合成了聚苯乙烯?二乙烯苯吸附树脂NDA-150,研究了NDA-150和市售吸附树脂XAD-4对苯酚和2-萘酚的静态和动态吸附性能.结果表明,在研究的浓度范围内,吸附符合Langmuir等温吸附方程且吸附为放热过程.NDA-150对苯酚和2-萘酚的吸附与树脂的比表面积、微孔面积及酚类物质的疏水性有关.随流速增大,树脂穿透时间及饱和时间提前,平衡吸附量降低;初始溶液浓度增大,树脂穿透时间及饱和时间提前,平衡吸附量增大.NDA-150树脂对2-萘酚和苯酚的动态吸附较好地符合Thomas模型和LDF模型.含0.1 mol/L Na OH的60%乙醇溶液从NDA-150树脂中脱附2-萘酚和苯酚,脱附率可达90%以上.
Polystyrene-divinylbenzene adsorption resin NDA-150 was synthesized and the static and dynamic adsorption properties of NDA-150 and XAD-4 on the adsorption of phenol and 2-naphthol were studied.The results showed that in the concentration range studied , The adsorption is in accordance with the Langmuir isothermal adsorption equation and the adsorption is an exothermic process.The adsorption of phenol and 2-naphthol on the adsorption of phenol and 2-naphthol is related to the specific surface area, micropore area and the hydrophobicity of phenols.With the increase of the flow rate, The resin penetration time and saturation time advance, the equilibrium adsorption capacity decreases; initial solution concentration increases, the resin penetration time and saturation time advance, the equilibrium adsorption capacity increases.NDA-150 resin adsorption of 2-naphthol and phenol than the dynamic adsorption Good agreement with the Thomas model and the LDF model.2-naphthol and phenol desorption from NDA-150 resin with 60% ethanol solution containing 0.1 mol / L NaOH, the desorption rate of up to 90%.