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溶剂抽提法制备洁净煤
MANUFACTURING CLEAN COAL BY THE MEANS OF SOLVENTEXTRACTION
【摘要】 室温常压下,用二硫化碳和N-甲基-2-吡咯烷酮(CS2-NMP)混合溶剂(1:1,V/V)萃取淮北童亭和徐州庞庄煤,得到萃取物。XRD和TEM分析表明萃取物基本无灰,且多为25~100nm和80~240nm之间的细小碎片,是一种超纯超微洁净煤。
【Abstract】 The extracts of Tongting(Huaibei)and Pangzhuang coal(Xuzhou),obtained by extraction with eabondisulfide - N - melthyl - 2 - pyrrolidinone(CS2- NMP)mixed solvent (1 : 1, V/V)atmild conditions, room temperature and normal atmosphere, was characterized by XRD and TEM.The result shows that the extracts,basically free of ash and size mainly about 25 - 100 nm and 80 - 240 nm,is fine fragments,also a superclean and superfine clean coal.
【关键词】 煤;
溶剂萃取;
超纯煤;
超微煤;
洁净煤;
【Key words】 coal; solvent extraction; superelean coal; superfine coal; clean coal.;
【Key words】 coal; solvent extraction; superelean coal; superfine coal; clean coal.;
【基金】 国家自然科学基金(2976045);煤炭科学基金(93加10101);煤炭普通高校跨世纪学术带头人计划基金;大连理工大学碳资源综合利用开放实验室开放课题基金(97006k)
- 【文献出处】 煤矿环境保护 , 编辑部邮箱 ,2000年02期
- 【分类号】TQ536
- 【被引频次】7
- 【下载频次】274