| 常压下煤的碱处理脱灰 |
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| 引用本文： | 李德伏 崔之栋. 常压下煤的碱处理脱灰[J]. 煤炭转化, 1992, 15(4): 83-88 |
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| 作者姓名： | 李德伏 崔之栋 |
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| 作者单位： | 大连理工大学化工学院，大连理工大学化工学院，大连理工大学化工学院 博士生，大连 116012，教授，大连 116012，讲师，大连 116012 |
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| 摘 要： | 在融碱法和高压液减法脱灰的基础上,研究了煤的常压液碱法脱灰。考察了碱煤比、反应温度、时间、粒度组成等对两种煤脱灰的影响,并对脱灰机理作了初步分析。
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| 关 键 词： | 煤 脱灰 碱处理 |
DMSHING OF COAL WITH AQUEOUS ALKALI UNDER ATMOSPHERE |
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| Li Defu,Cui Zhidong,Wang Tonghua School of Chem. Eng.,Dalian University of Technology ,Dalian. DMSHING OF COAL WITH AQUEOUS ALKALI UNDER ATMOSPHERE[J]. Coal Conversion, 1992, 15(4): 83-88 |
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| Authors: | Li Defu Cui Zhidong Wang Tonghua School of Chem. Eng. Dalian University of Technology Dalian |
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| Affiliation: | Li Defu,Cui Zhidong,Wang Tonghua School of Chem. Eng.,Dalian University of Technology 116012,Dalian |
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| Abstract: | The beneficiation of coal is one of the most important and necessary technology for realizing to replace coal by oil and cuttingdown environmental pollution.The deashing of coal was studied under atmo-sphere with alkali treatment followed by acid washing. In alkali treat-ment, ash reduction increases with the severity of reaction conditions,while the ratio of alkali to material is the most important factor.Acidwashing is important step but has less effect on ash reduction under therange of experiment conditions.Under the optimum condition, 90 percent ofthe ash could be removed. The analysis of treated coal indicates that thestructure and property of coal are essentially unchanged. |
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| Keywords: | coal deashing of coal ultraclean coal |
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