| 可膨胀石墨的制备 |
| PREPARATION OF EXPANSIBLE GRAPHITE |
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| 摘要: 本文研究了一种以天然石墨和混酸为原料，高锰酸钾为氧化剂制备高膨胀容积可膨胀石墨的新方法。其最佳参数为：混酸与石墨的重量比为3∶1；高锰酸钾为石墨重量的8%；反应温度25℃；反应时间0.5 h。制得的可膨胀石墨每克可膨胀体积为375毫升，比传统方法制得的可膨胀石墨高出175 ml/g。 |
| 关键词: 石墨 可膨胀石墨 混酸 高锰酸钾 制备 |
| 基金项目: |
| Abstract: This paper reported a new method for preparing expansible graphite. The high expanded volume graphite was prepared in mixed acids solution using potassium permanganate as a oxidizing agent at room temperature. Its optimal parameters are as follows: weight ratio of mixed acid and graphite, 3∶1； weight ratio of potassium permanganate and graphite, 8%; reaction time, 0.5h; reaction temperature, 25℃. The expanded volume of the expansible graphite is 375 ml·g-1, its expanded volume is 175 ml·g-1 more than one prepared by the traditional method. |
| Keywords: expansible graphite mixed acid potassium permanganate graphite Preparation |
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| 全文下载次数: 1861 |
| 靳通收,马艳然,李强.可膨胀石墨的制备[J].无机化学学报,1997,13(2):231-233. |
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