微晶石墨与无烟煤浮沉特性研究  

Floatation-sink Characteristic of Microcrystalline Graphite and Anthracite

作　　者：孟媛媛[1] 任瑞晨[2] 秦海峰 陶文君[1] 

机构地区：[1]辽宁工程技术大学矿业技术学院,葫芦岛125100 [2]辽宁工程技术大学矿业学院,阜新123000 [3]抚顺石化公司腈纶化纤厂,抚顺113000

出　　处：《硅酸盐通报》2016年第7期2214-2218,共5页Bulletin of the Chinese Ceramic Society

摘　　要：对内蒙古某无烟煤共伴生型微晶石墨采用酸法脱灰,根据浮沉法研究了微晶石墨与无烟煤的浮沉分离密度及不同密度级产物的产率分布,采用X射线衍射和拉曼光谱特征分析了浮沉分离后微晶石墨与无烟煤的矿物组成及拉曼特征。结果表明:以拉曼光谱参数A_D/(A_D+A_G)值表征无烟煤基微晶石墨中无烟煤含量,并将A_D/(A_D+A_G)值与浮沉试验中浮物累积产率比对,二者变化趋势具有较好的一致性,但受解离度影响。Taking deep metamorphic anthracite as research object, the floatation-sink separation density of symbiotic microcrystalline graphite and anthracite was studied through floatation-sink test, and according to the distribution of different density grade product, Combined with the characteristic of X-ray diffraction and Raman spectra, both mineral composition and Raman characteristics of the separated microcrystalline graphite and anthracite were analyzed. The results showed that using AD/（ AD ＋ AG ） value for representing the anthracite content, and comparing AD/（AD ＋ AG） value with float cumulative yield of floatation-sink test, the two value of change trend is good consistency, but it is affected by the dissociation degree.

关 键 词：微晶石墨 无烟煤 拉曼光谱分析 浮沉 相对含量 

分 类 号：TD985[矿业工程—选矿]