| 制备无硫可膨胀石墨的研究 |
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| 引用本文： | 宋克敏,刘金鹏,靳通收,李国山. 制备无硫可膨胀石墨的研究[J]. 无机材料学报, 1997, 12(2): 252-256 |
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| 作者姓名： | 宋克敏 刘金鹏 靳通收 李国山 |
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| 作者单位： | 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 |
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| 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．
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| 关 键 词： | 无硫可膨胀石墨 制备 65％硝酸 乙酸酐 |
| 收稿时间： | 1996-01-29 |
| 修稿时间： | 1996-03-25 |
Preparation of Sulfur-Free and Expandeble Graphite |
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| SONG Kemmin,LIU Jinpeng,JIN tongshou,LI Quoshan. Preparation of Sulfur-Free and Expandeble Graphite[J]. Journal of Inorganic Materials, 1997, 12(2): 252-256 |
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| Authors: | SONG Kemmin LIU Jinpeng JIN tongshou LI Quoshan |
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| Affiliation: | Department of Basic Course; Hebei Agriculture University Baoding 071001 China; Hebei Institute of Chemical Technology and Light Industry Shijiazhuang 050018 China; Department of Chemistry Hebei University Baoding 07100, China; Department of Chemistry Hebei Education college Shijiazhuang 050091 China |
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| 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. |
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| Keywords: | sulfur-free and expandable graphite preparation acetic anhydride 65% nitric acid |
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