摘要
阐述了煤中微量有害元素的赋存状态和洗选脱除机理,指出微量有害元素在选煤过程中的迁移行为取决于其赋存状态和有机亲和性,以无机态或矿物质结合态为主的有害元素大部分能被脱除,总结概括了常规洗选方法脱除煤中微量有害元素的研究状况,指出常规洗选方法一定程度上脱除煤中微量有害元素,重点分析了磁选脱除煤中有害微量元素的研究进展.
The modes of occurrence and cleaning mechanism of hazardous trace elements in coal were illustrated and pointed that the migration behavior of trace elements in coal were dominated by their organic affinities; the trace elements associated with inorganic minerals can be removed; meanwhile summarized the research situation of removing hazardous trace elements by conventional washing methods and pointed the trace elements can be removed by conventional methods; focused on the analysis of research progress of removing hazardous trace elements by magnetic separation
出处
《煤炭转化》
CAS
CSCD
北大核心
2011年第1期87-91,共5页
Coal Conversion
基金
河南省重点科技攻关项目(072302190002)
河南省高校科技创新人才基金资助项目(2009HASTIT020)
中国矿业大学教育部重点实验室开放基金资助项目(CPEUKF08-03)
关键词
微量元素
磁选
洗选
亲和性
trace elements, magnetic separation, cleaning, affinity
