| 煤中腐植酸与尿素相互作用机理的研究 |
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| 引用本文： | 梁宗存,成绍鑫.煤中腐植酸与尿素相互作用机理的研究[J].燃料化学学报,1999,27(2):176-181. |
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| 作者姓名： | 梁宗存 成绍鑫 |
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| 作者单位： | 中国科学院山西煤炭化学研究所 |
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| 摘 要： | 采用化学法和波谱分析法对泥炭、褐煤、风化煤腐植酸（ＨＡ）与尿素的相互作用机理进行了研究。结果表明，ＨＡ与尿素之间发生了极其复杂的反应，包括离子化、络合配位、亲核加成、自由基反应及氢键缔合等，形成不同的化学键。羧基对反应深度的影响最大；含官能团（特别是羧基）最多的风化煤ＨＡ反应性最高。本项研究为有机长效尿素的研制提供了理论依据
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| 关 键 词： | 低阶煤，腐植酸，尿素，机理 |
STUDY ON MECHANISM OF INTERACTIONBETWEEN COAL HUMIC ACID AND UREA |
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| Liang,ZongcunCheng ShaoxinWu Liping.STUDY ON MECHANISM OF INTERACTIONBETWEEN COAL HUMIC ACID AND UREA[J].Journal of Fuel Chemistry and Technology,1999,27(2):176-181. |
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| Authors: | Liang ZongcunCheng ShaoxinWu Liping |
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| Institution: | Institute of Coal ChemistryChinese Academy of
SciencesTaiyuan |
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| Abstract: | The mechanism of interaction between urea and humic acid (HA)
from peat, lignite and weathered coal were studied by IR, ESR, XPS spectra and chemical
methods It was observed that very complex reactions including ionization, coordination,
carbonyl addition, free radicals reactions and H-bond association etc took place between urea
and HA, forming the various chemical bonds The carbonxylic groups in HA may play an
important role in the reactions Weathered coal HA containing more functional groups has higher
reactivity on urea The investigation provided scientific basis for preparation of the organic
long-term urea |
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| Keywords: | low-rank coals humic acid urea interaction mechanism |
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