| 煤的溶剂萃取研究进展 |
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| 引用本文： | 王晓华,魏贤勇. 煤的溶剂萃取研究进展[J]. 现代化工, 2003, 23(7): 19-22 |
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| 作者姓名： | 王晓华 魏贤勇 |
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| 作者单位： | 1. 西安科技学院化学与化工系,陕西,西安,710054
2. 中国矿业大学化工学院,江苏,徐州,221008 |
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| 基金项目： | 国家自然科学基金资助项目 (2 0 0 760 51 )，国家重点基础研究专项经费 (G1 9990 2 2 1 0 1 )，高校博士学科点专项科研基金资助项目(980 2 90 1 6) |
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| 摘 要： | 综述了近年来溶剂萃取煤的研究进展 ,讨论了影响萃取率的主要因素 ,包括溶剂、煤阶、煤岩组分及辅助手段等以及单一及混合溶剂的萃取机理。指出从分子水平上对煤进行分离进而分析是确定煤的化学结构的关键 ,而可溶化是从分子水平上分离煤的必要条件。溶剂分级萃取是一种行之有效的萃取方法 ,并提出了煤的溶剂萃取技术的若干研究方向
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| 关 键 词： | 煤 溶剂萃取 分子结构 |
| 文章编号： | 0253-4320(2003)07-0019-04 |
| 修稿时间： | 2003-02-14 |
Advances in coal solvent extraction |
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| WANG Xiao-hua ,WEI Xian-yong. Advances in coal solvent extraction[J]. Modern Chemical Industry, 2003, 23(7): 19-22 |
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| Authors: | WANG Xiao-hua WEI Xian-yong |
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| Affiliation: | WANG Xiao-hua 1,WEI Xian-yong 2 |
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| Abstract: | Research progress in coal solvent extraction in past few years is reviewed. The main influence factors on extraction including solvent type,coal rank,lithotypes and assistant methods are discussed. The mechanism of coal solvent extraction is analyzed. It is pointed out that the key to confirm the coal chemical structure is to separate and analyze the coal from molecule degree and unfreezing is the premise of coal separation,and it is effective to study coal structure by fractionated extraction method. And several research directions are mentioned. |
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| Keywords: | coal solvent extraction molecule structure |
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