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无机材料学报

无机材料学报

• 研究论文 • 上一篇    

制备无硫可膨胀石墨的研究

宋克敏1; 刘金鹏2; 靳通收3; 李国山4   

  1. 河北农业大学基础部; 保定071001; 河北轻化工学院化工系; 石家庄050018; 河北大学化学系;保定 071002; 河北教育学院化学系; 石家庄050091
  • 收稿日期:1996-01-29 修回日期:1996-03-25 出版日期:1997-04-20 网络出版日期:1997-04-20

Preparation of Sulfur-Free and Expandeble Graphite

SONG Kemmin1; LIU Jinpeng2; JIN tongshou3; LI Quoshan4   

  1. 1Department of Basic Course; Hebei Agriculture University Baoding 071001 China; 2Hebei Institute of Chemical Technology and Light Industry Shijiazhuang 050018 China; 3Department of Chemistry Hebei University Baoding 07100, China; 4Department of Chemistry Hebei Education college Shijiazhuang 050091 China
  • Received:1996-01-29 Revised:1996-03-25 Published:1997-04-20 Online:1997-04-20

PDF (PC)

1176

被引次数

37

摘要： 用硝酸（65％）和乙酸酐混合液、高锰酸钾和天然鳞片石墨反应制备无硫可膨胀石墨，最佳反应条件是：石墨、乙酸酐、硝酸、高锰酸钾的重量比为1：0．8：0．5：0．07，反应时间为40min，反应温度为30℃，可膨胀石墨的膨胀容积为280mL／g；不含硫，含氮量为1．27％，其终端产品柔性石墨不含氮．迄今为止，未见文献报道．

关键词: 无硫可膨胀石墨, 制备, 65％硝酸, 乙酸酐

Abstract: This paper studied a new method for preparing no-sulfur content and expandable graphite bypotassium permanganate as oxidant and a mixture of acetic anhydride and 65% nitric acid as medium. Theoptimum conditions for preparing the expandable graphite are as follows. Weight ratio of graphite: aceticanhydride: 65% nitric acid: potassium permanganate is 1.0:0.8:0.5:0.07; reacting temperature, 30℃;reacting time, 40min. The expanded volume and nitrogen content of the expandable grwphite are 280m/gand 1.27% respectively. the end product, flexble graphite does not contain nitrogen. To date, similar report has not been seen in the literature.

Key words: sulfur-free and expandable graphite, preparation, acetic anhydride, 65% nitric acid