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| 风化煤腐植酸增效尿素红外光谱分析 |
| The Infrared Spectrum Analysis on Compound Urea with Humic Acid Extracted from Weathered Coal |
| 投稿时间：2014-05-07 |
| DOI：10.13254/j.jare.2014.0119 |
| 中文关键词: 风化煤 腐植酸 增效尿素 红外光谱 |
| 英文关键词: weathered coal humic acid compound urea infrared spectrum analysis |
| 基金项目:国家科技支撑计划:江西双季稻大面积均衡增产技术集成研究与示范(2012BAD04B11);鄱阳湖生态经济区绿色高效循环农业技术集成与示范(2012BAD14B14);复合(混)肥农艺配方与生态工艺技术研究(2011BAD11B05-12) |
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| 中文摘要: |
| 采用碱性混合活化剂处理风化煤,研制腐植酸添加剂,按不同比例添加到尿素熔融液中,采用模拟喷浆造粒的方法,制备3类增效尿素。通过风化煤与添加剂、尿素与增效尿素红外光谱特征对比发现:风化煤经过活化后,碳单键数量降低,碳链缩短,活性腐植酸HA类提取物出现活性官能团,FR类除单键数量减少和碳链缩短外,生成部分胺、酰胺结构;增效剂与尿素在反应过程中,出现了三键和累积双键破坏、稳定性复合物形成、碳链缩短、双键结构增加等变化,但不同类型增效剂对产品红外光谱特征影响存在差异。 |
| 英文摘要: |
| After treated with alkaline solution and then centrifuged, weathered coal was divided into water-soluble humic acid and deposi- tion. Then as the urea synergist materials, weathering coal, humic acid and deposition were respectively mixed with melted urea according to different proportion to produce three kinds of compound urea. The infrared spectrum analysis(IR)of above synergist materials and products found that after being treated with alkaline, weathered coal was reduced carbon-carbon bond amount and its carbon chain became shorten,more active functional group happened to the HA extracts. While the FR deposition showed carbon-carbon bond reduced and parts of amine or amide structure were formed. Additionally, the IR also found that during the compound of urea with the synergists, the formation of carbon-carbon triple bond, the broken of accumulated double bonds, the shorten of carbon chain, and the formation of more double bond and stablestructure were observed. However, the different synergists mixed with urea brought out different IR characters. |
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