摘要
在室温常压下,通过对两种变质程度不同的烟煤进行CS2/NMP混合溶剂萃取和反萃取,制备出两种棕褐色的精煤颗粒,并用透射电子显微镜(TEM)和红外光谱(FTIR)对其结构进行表征,结果表明:两种精煤颗粒超细微,粒径达到纳米级;颗粒近乎无灰,主要基团为脂肪族、醌基与芳酮、酚醇醚及取代芳烃。
Two different rank soft coals were extracted and reverse extracted with carbon disulfied and N-melthy-2-pyrolidinone (CS2/NMP) mixed solvent at mild conditions,room temperature and normal atmosphere to prepare two kinds of brown particles of ultra-pure coal. The structures of the particles were characterized by TEM and FTIR. The results show that two kinds of nanometer particles of ultra-pure coal are superfine and there are almost no ash and a majority of organic group which include aliphatic,quinones,aryl,ketones,phenols,alcohols,ethers and substituted aromatics.
出处
《选煤技术》
CAS
北大核心
2010年第2期1-4,共4页
Coal Preparation Technology
基金
国家自然科学基金资助项目(编号:90410018)
高等学校博士学科点专项科研基金(编号:20020290007)
教育部科学技术研究重点项目(编号:104031)
关键词
超纯超微精煤
制备
萃取
反萃取
表征
纳米级
ultra-pure coal
preparation
extraction
reverse extraction
nanometer
