| 无硫无灰分可膨胀石墨制备 |
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| 引用本文： | 张洪国,张慧,牟春博.无硫无灰分可膨胀石墨制备[J].非金属矿,2007,30(2):32-33,67. |
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| 作者姓名： | 张洪国 张慧 牟春博 |
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| 作者单位： | 青岛大学化学化工与环境学院,山东青岛,266071 |
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| 基金项目： | 青岛大学校科研和教改项目 |
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| 摘 要： | 以硝酸和双氧水为氧化剂、乙酸为插入剂,制备了无硫可膨胀石墨.探讨了氧化时间、试剂浓度及用量等对膨胀体积的影响.指出按本研究工艺制备的试样的膨胀体积可达300倍以上.本工艺方法具有反应试剂可重复利用,成本低,废液治理简单易行且可变成化肥.所得产品不合硫,无灰分.
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| 关 键 词： | 硝酸 双氧水 乙酸 无硫可膨胀石墨 |
| 修稿时间： | 2006-10-30 |
Preparation of Sulphur-Ash-free Expandable Graphite |
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| Zhang Hongguo,Zhang Hui,Mou Chunbo.Preparation of Sulphur-Ash-free Expandable Graphite[J].Non-metallic Mines,2007,30(2):32-33,67. |
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| Authors: | Zhang Hongguo Zhang Hui Mou Chunbo |
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| Abstract: | Sulphur-free expandable graphite was synthesized using the nitric acid and hydrogen peroxide as the oxidant and acetic acid as the inserting reagent. The factors that in? uence expanded volume were discussed,such as oxidation time,the volume and strength of reagent. The expanded volume of the sample preparing by this technology is over 300,without sulphur and ash. This technology is simple and economic and the wastewater from this technology can be used as agrochemical. |
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| Keywords: | nitric acid hydrogen peroxide acetic acid sulphur-free expandable graphite |
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