N503萃淋树脂吸附镉的研究  

STUDY ON ADSORPTION OF CADMIUM WITH N503 LEVEXTREL RESIN

作　　者：陈建荣[1] 林建军[1] 吴小华 袁欣星 周静芬 

机构地区：[1]浙江师范大学化学系

出　　处：《中国有色金属学报》1998年第3期507-510,共4页The Chinese Journal of Nonferrous Metals

基　　金：浙江省分析测试基金

摘　　要：研究了Ｎ５０３（Ｎ，Ｎ二仲辛基乙酰胺）萃淋树脂在氢溴酸、硫酸－溴化钠体系中对镉的吸附性能。探讨了Ｎ５０３萃淋树脂在氢溴酸体系中吸附镉的动力学和机理，发现Ｎ５０３萃淋树脂吸附镉的反应按拟一级反应进行，并符合Ｆｒｅｕｎｄｌｉｃｈ等温吸附式。由斜率法和饱和容量法确定Ｎ５０３萃淋树脂吸附镉的反应，镉以ＣｄＢｒ－３形式吸附在Ｎ５０３萃淋树脂上，镉与Ｎ５０３的摩尔比为１∶３。The adsorptivity of N503(N, N di(sec octyl) acetamide) levextrel resin to cadmium in HBr and NaBr-H 2SO 4 media has been studied. The adsorption kinetics and adsorption mechanism for N503 levextrel resin to cadmium have been also discussed. The results show that the adsorption of the N503 levextrel resin to cadmium is carried out in pseudo first order reaction and follows Freundlich isothermal adsorption equation. By the use of slope ratio method and saturation method it has been revealed that cadmium is adsorped by N503 levextrel resin in the form of CdBr - 3. The mole ratio of cadmium with N503 is 1∶3.

关 键 词：镉 吸附 N503 萃淋树脂 

分 类 号：O614.242[理学—无机化学] O658[理学—化学]