Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第8卷    第3期    总第28期    1998年9月

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文章编号:(1998)03-507-4
N503萃淋树脂吸附镉的研究
陈建荣     林建军    吴小华    袁欣星    周静芬

(浙江师范大学化学系, 金华 321004)

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。

 

关键字: 关键词:     镉    吸附    N503    萃淋树脂

STUDY ON ADSORPTION OF CADMIUM WITH N503 LEVEXTREL RESIN
Chen Jianrong, Lin Jianjun, Wu Xiaohua, Yuan Xinxing and Zhou Jingfen

Department of Chemistry, Zhejiang Normal University,Jinhua 321004, P. R. China

Abstract:The adsorptivity of N503(N, N-di(sec-octyl) acetamide) levextrel resin to cadmium in HBr and NaBr-H2SO4 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.

 

Key words:     cadmium    N503 levextrel resin     adsorption

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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