摘要
综述了国内外煤灰中金的研究进展,详细探讨了煤灰中金的分布规律,煤燃烧时金的迁移规律、金挥发的影响因素与利用可行性。世界范围内绝大多数煤灰中金含量比原煤中要富集,仅发现部分地区煤灰中金含量比原煤中低。煤中金的赋存状态、成煤地质地球化学环境及燃烧条件是影响燃煤过程中金挥发的主要因素,其中赋存状态对燃煤过程中金的再分配起控制作用。煤灰中金储量的初步计算结果表明,黔西南煤与煤灰中金颇具利用潜力。
Recent researches on Au in coal ash were summarized in this paper,including the distribution law and the migration rule of gold in coal ash,as well as the influencing factors on volatility and use feasibility of Au in the pro-gress of coal combustion.Au content in coal ash is much higher than that in the raw coal in most cases worldwide, only a small number of opposite cases are found in certain places.Occurrence of Au in coal,geological-geochemical environment of coal-forming and combustion conditions are the main factors controlling the volatility of gold in coal combustion,while the occurrence of Au in coal dominates the redistribution of Au.Through preliminary calcula-tion,gold in coal ash is expected to have a considerable utilization potential in the southwestern Guizhou Province.
出处
《矿物岩石地球化学通报》
CAS
CSCD
北大核心
2014年第2期247-251,270,共6页
Bulletin of Mineralogy, Petrology and Geochemistry
基金
教育部"新世纪优秀人才支持计划"项目(NECT-08-0839)
中央高校基本科研业务费专项基金资助项目(2010LKDJ06)
关键词
煤灰
金
地球化学
利用潜力
coal ash
gold
geochemistry
utilization potential
