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《Journal of Sichuan University (Natural Science Edition)》 2005-06
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Adsorption Research of Expanded Graphite and Activated Carbon on Several Industrial Oils

LIU Shu-fen,LI Ji-hui(College of Chemistry and Material Science,Hebei Normal University,Shijiazhuang 050016,China)  
The expanded graphites of different expandable volumes were prepared with squamous graphite and chemical oxidation,the preparative procedure included inserting organic compounds,washing,drying and expanding at high temperature.The expanded graphite and activated carbon were as absorbers,the industrial oils were as absorbed materials.The absorbing capacity of the expanded graphite was comparable with the ones of activated carbon.The absorbing capacity and the residual absorbing capacity were measured and contrasted by weight method.The experimental result showed that the absorbing capacity of expanded graphite was 13~23 times more than that of the activated carbon,and the residual absorbing capacity was larger than the activated carbon.The larger the expandable volume was,the stronger the absorbing capacity was.SEM was used to evidence the appearance of the expanded graphite,and the absorptive mechanism was discussed.
【Fund】: 河北省教育厅资助项目(2003237)
【CateGory Index】: O647.31
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