| 高精煤新技术研究 |
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| 引用本文： | 郑明东,崔之栋,王同华.高精煤新技术研究[J].安徽工业大学学报,1990(3). |
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| 作者姓名： | 郑明东 崔之栋 王同华 |
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| 作者单位： | 华东冶金学院，大连理工大学，大连理工大学 |
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| 摘 要： | 本文是在实验室内采用较温和的条件,即以氢氟酸(HF)和F—酸为浸取剂,对煤烟A进行连续分步脱灰和混合酸脱灰研究,实验结果表明在适当的条件下可以得到灰分为0.5％或更低的高精煤产品;同时,通过对烟煤A在不同脱灰率下灰分的组成分析,结果表明烟煤A在脱灰后所得高精煤的灰分(A)与其所含的硅、铁元素重量总和(x)呈线性关系;通过对烟煤A脱灰前后红外波谱的分析,表明它们的基本有机组成不变。
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| 关 键 词： | 烟煤 脱灰 氢氟酸 |
A Study of New Technique of High-refined Coal |
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| Zheng Mingdong Cui Zhidong Wang Tonghua.A Study of New Technique of High-refined Coal[J].Journal of Anhui University of Technology,1990(3). |
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| Authors: | Zheng Mingdong Cui Zhidong Wang Tonghua |
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| Affiliation: | Zheng Mingdong Cui Zhidong Wang Tonghua (East China Inst. of Metall.)(Dalian Univ. of Technology) |
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| Abstract: | Bituminite A is deashed under moderate conditions with hydrof- luoric acid or F-acid separately or mixed acid of hydrofluric acid and F-acid. The ash of the product of high-refined coal could be reduced to 0.5% or lower under proper conditions; the ash composition analysis before and after deashing process indicated that the ash of high-refined coal was a apparent linear relationship with the total contents of silicon and iron re- mained in coal. The basic organic groups of the high-refined coal were less affected after or before deashing process by IR analysis. |
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| Keywords: | Bituminous coal Deashing Hydrofluoric acid |
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