作者
Khalid Z Elwakeel, Gamal O El-Sayed, Ramy S Darweesh
发表日期
2013/4/10
期刊
International Journal of Mineral Processing
卷号
120
页码范围
26-34
出版商
Elsevier
简介
Chitosan resin was cross-linked using ethylene glycol diglycidyl ether and modified through the reaction with ethylenediamine and 3-amino-1,2,4-triazole-5-thiol to produce chitosan/amine (R-en) and chitosan/azole (R-az) resins, respectively. The adsorption behavior of the chelating resins towards Ag(I) from aqueous media was studied. Better adsorption behavior was achieved for Ag(I) by R-en resin. The chelating matrix obtained from ethylenediamine showed uptake capacity of 1.13mmol/g in 20min and at 25°C. These resins were evaluated for their recovery of Ag(I) from aqueous solutions using batch methods and column techniques. Various parameters such as pH, agitation time, Ag(I) concentration and temperature had been studied. The kinetics and thermodynamic behavior of the adsorption reaction were defined. The obtained resins achieved promising results in the selective separation of Ag(I) from other …
引用总数
201320142015201620172018201920202021202220232131281412991176
学术搜索中的文章
KZ Elwakeel, GO El-Sayed, RS Darweesh - International Journal of Mineral Processing, 2013