Distributions of rare-earth elements in two Chinese coals and their burnt products

Distributions of rare-earth elements in two Chinese

coals and their burnt products

YAO Duo-xi;ZHI Xia-chen

【期刊名称】《煤炭学报：英文版》 【年(卷),期】2005(011)002

【摘要】The concentrations of two fresh Chinese coals (lignitie and fatty coal ) from different geological origin and the corresponding fly and bottom ashes were determined using inductively coupled plasma mass spectrometry(ICP-MS). The ranges and means of concentrations of these elemennts were given. Based on the combustion simulating experiment in the one-dismensional boiler, the contents of REE (rare-earth element) of 18samples in lignite, fatty coal and their fly and bottom ashes in different combustion condition were determined, and geochemical feature of REE were analyzed. 【总页数】4页(71-74)

【关键词】REE;distribution;burnt products;coal combustion;two Chinese coals

【作者】YAO Duo-xi;ZHI Xia-chen

【作者单位】Department of Natural Resources and Environmental Engineering, Anhui University of Science and Technology, Huainan 232001, China;Department of Earth and Space Sciences, University of Science and Technology of China. Hefei 230026, China