Extraction of scandium from red mud by modified activated carbon and kinetics study
来源期刊：Rare Metals2008年第3期
论文作者：ZHOU Hualei~(a,b) LI Dongyan~a TIAN Yajun~a CHEN Yunfa~a ~a State Key Laboratory of Multi-phase Complex System,Institute of Process Engineering,Chinese Academy ofSciences,Beijing ,China ~b School of Applied Sciences,University of Science and Technology Beijing,Beijing ,China
文章页码：223 - 227
摘 要：<正>Activated carbon（AC）was modified by tri-butyl phosphate（TBP）for selectively extracting scandium from red mud and characterized by BET（Brunauer-Emmett-TeUer）surface area.The modified AC had a preferential adsorption to scandium.The influences of adsorbent dos- age,adsorption temperature,and time on adsorption capacity and selectivity to scandium were examined.An optimum adsorbent dosage （～6.25 g/L）,adsorption temperature（308 K）,and adsorption time（40 min）were figured out.A pseudo-second-order kinetics model was em- ployed for describing the adsorption process of scandium.
摘要：<正>Activated carbon（AC）was modified by tri-butyl phosphate（TBP）for selectively extracting scandium from red mud and characterized by BET（Brunauer-Emmett-TeUer）surface area.The modified AC had a preferential adsorption to scandium.The influences of adsorbent dos- age,adsorption temperature,and time on adsorption capacity and selectivity to scandium were examined.An optimum adsorbent dosage （～6.25 g/L）,adsorption temperature（308 K）,and adsorption time（40 min）were figured out.A pseudo-second-order kinetics model was em- ployed for describing the adsorption process of scandium.
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