铀酰离子在大孔膦酸树脂上的吸附行为及其机理  

ADSORPTION BEHAVIOUR AND MECHANISM OF URANYL ION ONTO MACROPOROUS PHOSPHONIC ACID RESIN

作　　者：熊春华[1] 莫建军[1] 林峰[1] 

机构地区：[1]丽水师范专科学校化学系,北京大学技术物理系

出　　处：《铀矿冶》1994年第4期264-267,共4页Uranium Mining and Metallurgy

摘　　要：本文报道了大孔膦酸树脂对轴酰离子的吸附行为与机理．在ｐＨ＝３的ＨＡｃ－ＮａＡｃ体系中对ＵＯ有很好的吸附性，用５％的Ｎａ２ＣＯ３溶液定量解吸，测得静态吸附容量为４５０．６７ｍｐ／ｇ．用化学及红外光谱等方法，得到大孔膦酸树脂吸附铀酰离子的基本参数及其机理．In this paper, the sorption behaviour and mechanism of uranyl ion onto the macroporous phosphonic acid resin are reported. The macroporous phosphonic acid resin has a good adsorption ability for uranyl ion in the HAc-NaAc medium at PH 3. 0. The uranyl ion adsorbed on the macroporous phosphonic acid resin can be eluted by 5% aqueous Na2CO3 quantitatively. The saturated static adsorption capacity is 450. 67 mg/g. The basic adsorption parameters and mechanism of macroporous phosphonic acid resin for uranyl ion were determined by chemical analysis and IR spectrometry.

关 键 词：大孔磷酸树脂 铀酰离子 吸附机理 

分 类 号：O634.51[理学—高分子化学]