陕西煤中氟的含量分布及赋存形态研究  

Study on content distribution and occurrence form of fluorine in Shaanxi coal

作　　者：赵波 魏宁[1,2] ZHAO Bo;WEI Ning(Shaanxi Energy Quality Supervision and Inspection Institute,Xi’an 710054,China;National Supervision and Test Center of Coal Quality(Xi’an),Xi’an 710054,China)

机构地区：[1]陕西省能源质量监督检验所,陕西西安710054 [2]国家煤炭质量监督检验中心(西安),陕西西安710054

出　　处：《煤质技术》2020年第6期34-39,共6页Coal Quality Technology

基　　金：国家质检总局科技计划资助项目(2015QK206)。

摘　　要：为了解陕西煤中氟的含量分布情况及其赋存形态,对陕西省7个地市的146家煤炭企业生产的煤炭产品进行取样检测。简介陕西煤田分布以及样品采样点分布,依据GB/T 4633—2014中高温燃烧水解-氟离子选择电极法对148批次样品中的氟含量进行测定,即采用国标方法对煤样进行检测分析。通过对结果数据的汇总统计表明:陕西煤中氟含量分布区间为16μg/g^412μg/g,平均值为123μg/g;通过对陕西煤中氟与灰分、全硫、磷、砷、氯、汞的相关性进行统计分析,表明陕西煤中氟以无机矿物的形态赋存,陕西煤中氟含量与磷含量、砷含量有一定相关关系,与氯含量、汞含量相关性均不显著。In order to understand the distribution of fluorine content in Shaanxi coal and its occurrence form,the coal products produced by 146 coal enterprises in 7 cities of Shaanxi province were sampled and tested.This paper introduced the distribution of coal fields in Shaanxi province and the distribution of sampling points.According to GB/T 4633—2014,the fluorine content in 148 batches of samples were determined by high temperature combustion hydrolysis-fluoride ion selective electrode method,that was to say,the national standard method was used to test and analyze the coal samples.The results show that the fluorine content in Shaanxi coal ranges from 16μg/g to 412μg/g,the average value is 123μg/g;through the statistical analysis of correlation between fluorine and ash,total sulfur,phosphorus,arsenic,chlorine and mercury for Shaanxi coal,it was found that fluorine in Shaanxi coal exists in the form of inorganic minerals,and there is a certain correlation between fluorine content and phosphorus content,arsenic content in Shaanxi coal,there is no significant correlation with the content of chlorine and mercury.

关 键 词：煤中氟 含量分布 赋存形态 无机矿物 高温燃烧水解-氟离子选择电极法 相关性 

分 类 号：TQ531[化学工程—煤化学工程]