期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：S2
页码：2584-2589
出版社：University of Mohammed Premier Oujda
摘要：The extraction of metals from supports based on calcium phosphate was investigated; we conducted experiments with metal solutions at various concentrations, and using two carriers' calcium phosphate hydroxyapatite and hydroxyapatite in the presence of polyethylene glycol polymer. The results show a metal reten tion of selectivity with excellent yields. The kinetic study shows that the extraction equilibrium is fast for both matrices used. The present work relates to the adsorptio n of metal io ns of cadmium, cobalt and copper. The adsorptive capacity of calcium phosphates been interpreted in terms of adsorption isotherms b y exploiting both the Langmuir and Freundlich model. The highest adsorption quantities are improved out in the presence of PEG and reached 0.7 mmol / g, 0.66 mmol / g and 0.62 mmol / g respectively for the cadmium, copper and cobalt.
