摘要
选取神华煤和兖州煤两种煤样，用盐酸和氢氟酸处理脱去其中的矿物质，并且脱矿物质前后的煤样在氧化性气氛下，制成815℃的煤灰。利用红外光谱研究其矿物质组成以及处理前后煤结构的变化。结果表明：酸处理法能够脱除煤中大多数矿物质。2种煤灰中，矿物质组成主要是石英、硬石膏、方解石、高岭土和含铁矿物质，但含量不同。处理前后，煤结构中的含氧官能团发生了一定的变化。
Shenhua and Yanzhou coals were treated with solutions of HC1 and HF in order to detach the mineral . The raw and treated coals were burmed into ashes at 815℃ in oxidizing atmosphere. The mineral composition and coal structure were studied by FT-IR. The results show that the acid cure can remove most mineral of coal. The min- eral composition of two kinds of coal are mainly quartz, anhydrite, calcite, kaolinite and mineral of iron, but the quantities are differdent. After treatments, the oxygen functional groups of coal chemical structure were changed.
出处
《洁净煤技术》
CAS
2009年第3期39-42,共4页
Clean Coal Technology
基金
国家自然科学基金项目(20776094)
