抚顺煤精的物质组成及密度与品质相关性研究
Study on the Correlation between Material Composition and Density and Quality of Jet from Fushun,China
张超 1宋晓光 2范勇 3齐丽曼 1王楠 1王蕊 1盛金 2王环宇 1李文麾1
作者信息
- 1. 抚顺市产品质量监督检验所,辽宁抚顺 113006
- 2. 抚顺市检验检测认证中心,辽宁抚顺 113008
- 3. 抚顺琥珀研究所,辽宁抚顺 113005
- 折叠
摘要
煤精是一种天然有机宝石,由有机物和少量的矿物质组成.目前学术界缺乏对煤精物质组成的系统性研究.本文采用红外光谱、密度和灰分测定,对抚顺煤精和煤样品的物质组成进行了分析,为其鉴定和质量分级奠定了一定基础.通过红外光谱表征发现,煤精样品的物质组成包含一定数量的酯类化合物,而煤样品中几乎没有发现,这类化合物主要来自于煤精形成过程中的腐泥煤.煤精和煤都含有脂肪烃,但煤精中脂肪烃的含量比煤中的高.煤精是在煤化过程中腐泥煤(主要成分是链状脂肪族)填充了腐殖煤(主要成分是芳香族)的孔隙形成的腐殖腐泥煤.煤精、煤和煤矸石的密度和灰分与其含有矿物质量有密切关系,含矿物质多,灰分多,密度也高.煤精的物质组成决定了煤精的外部特征.
Abstract
Jet is a kind of natural organic gemstone,which is composed of organic matter and a small amount of minerals.At present,there is a lack of systematic research on the material compositions of jet in the academic community.This study used infrared absorption spectros-copy,density and ash content determination to analyze the material compositions of jet sam-ples from Fushun,China and coal samples,laying the foundation for the identification and quality grading of jet from Fushun,China.According to the infrared spectral characteristics of the jet samples from Fushun,China and the coal samples,it is found that the material composition of the jet samples contain a considerable amount of ester compounds,while al-most no such compounds are found in the coal samples.These compounds are mainly from sapropelic coal during the formation of jet.Both jet and coal samples contain aliphatic hydro-carbons,but the content of aliphatic hydrocarbons in jet is higher than that in coal.Jet is hu-mus-sapropelic coal which is formed during the coalification process when humus coal(main-ly composed of aromatic groups)was filled by sapropelic coal(mainly composed of chain ali-phatic groups).The density and ash content of jet,coal or coal gangue are closely related to the amount of minerals they contained.The more minerals they contain,the higher the ash content and density will be.The material composition of jet determines its external charac-teristics.
关键词
煤精/煤/腐殖腐泥煤/红外吸收峰/密度/灰分Key words
jet/coal/humus-sapropelic coal/infrared absorption peak/density/ash content引用本文复制引用
出版年
2024
NETL
NSTL
万方数据