Synthesis and performance of organic-coated magnetite particles

被引：43
|
作者：
Yamaura, M [1 ]
Camilo, RL [1 ]
Felinto, MCFC [1 ]
机构：
[1] IPEN CNEN SP, Environm & Chem Ctr, BR-05508900 Sao Paulo, Brazil
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2002年 / 344卷 / 1-2期
关键词：
magnetic resin; metal removal; magnetic particles; europium; adsorption isotherm;
D O I：
10.1016/S0925-8388(02)00356-0
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Polymeric-coated magnetite particles with an adsorbed layer of extractant have been synthesized and are being evaluated for application in the separation and recovery of low concentrations of europium from water solutions. Physical characterizations of the extractant adsorbed particles were performed by X-ray diffractometry, Scanning Electron Microscopy and FT-IR spectrometry. Metal separations have been performed at various HNO(3) concentrations. Separation efficiency of the polymeric magnetic particles and the equilibrium adsorption isotherm of europium were investigated. Moreover, the magnetic field effect in the separation using a magnet was also verified. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：152 / 156
页数：5
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