摘要
对大兴煤先进行萃取再用双氧水将萃余煤进行氧化,并对其残余产物进行分析。热重结果显示煤有4次比较明显的质量减少,但第三次煤中不太稳定的大分子化合物发生分解、解聚导致失重最多。红外表明原煤的结构最复杂,而萃取和氧化使煤中的官能团种类变化很小但其中某些物质的含量却发生了较大的变化,从而导致大内部结构发生变化。
To carry out the extraction and oxidation of the residual coal with hydrogen peroxide, and then analyze the residual products. Thermogravimetric results show 4 times coal quality is significantly reduced, but the large molecular compounds of third coal are not stable, resulting in weight loss up to decompose depolymerization. By FTIR it is concluded that coal is a kind of complex mixture with more functional, extraction or oxidation can change organic matter of coal, the changes is a difference. Extraction or oxidation of functional groups in coal before and after the change is not large; the content of certain substances had undergone great changes.
出处
《广东化工》
CAS
2017年第16期91-92,共2页
Guangdong Chemical Industry
关键词
煤
萃取
氧化
FTIR
coal
extraction
oxidation
FTIR
