Computer-controlled scanning electron microscopy (CCSEM) investigation of quartz in coal fly ash

被引：16
作者：
Cprek, Nick
Shah, Naresh
Huggins, Frank E.
Huffman, Gerald P. [1 ]
机构：
[1] Univ Kentucky, Consortium Fossil Fuel Sci, Lexington, KY 40506 USA
[2] Univ Kentucky, Dept Chem & Mat Engn, Lexington, KY 40506 USA
来源：
FUEL PROCESSING TECHNOLOGY | 2007年 / 88卷 / 11-12期
关键词：
coal fly ash; quartz; CCSEM;
D O I：
10.1016/j.fuproc.2007.06.007
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Computer-controlled scanning electron microscopy (CCSEM) and X-ray diffraction (XRD) were used to investigate Si-rich phases in several coal fly ash (CFA) samples. The CCSEM measurements utilized both particle size distributions and a particle shape parameter, circularity, to classify the Si-rich phases in these ashes. The results indicated that the amount of free, respirable, crystalline quartz in these CFA samples was very small (< 1.0 vol.%). Neither the total quartz nor the respirable quartz determined by CCSEM showed a significant correlation with the XRD results for the bulk ash. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1017 / 1020
页数：4
相关论文
共 16 条
[1]   Investigation of primary fine particulate matter from coal combustion by computer-controlled scanning electron microscopy [J].
Chen, YZ ;
Shah, N ;
Huggins, FE ;
Huffman, GP ;
Linak, WP ;
Miller, CA .
FUEL PROCESSING TECHNOLOGY, 2004, 85 (6-7) :743-761
[2]   The quartz hazard: A variable entity [J].
Donaldson, K ;
Borm, PJA .
ANNALS OF OCCUPATIONAL HYGIENE, 1998, 42 (05) :287-294
[3]   Collaborative study of quantitative coal mineral analysis using computer-controlled scanning electron microscopy [J].
Galbreath, K ;
Zygarlicke, C ;
Casuccio, G ;
Moore, T ;
Gottlieb, P ;
AgronOlshina, N ;
Huffman, G ;
Shah, A ;
Yang, N ;
Vleeskens, J ;
Hamburg, G .
FUEL, 1996, 75 (04) :424-430
[4]  
HELBLE JJ, 1991, MECH ASH EVOLUTION F, P209
[5]  
HUFFMAN GP, 1994, P 1993 ENG C IMP ASH, P409
[6]  
HUFFMAN GP, 1981, P INT C COAL SCI DUS, P835
[7]  
HUGGINS FE, 1980, COAL MINERALOGIES SE, V1, P531
[8]  
International Agency for Research on Cancer (IARC), 1997, IARC MON EV CARC RIS, V68
[9]   SIZE-RELATED VARIATIONS IN COAL FLY-ASH COMPOSITION AS DETERMINED USING AUTOMATED SCANNING ELECTRON-MICROSCOPY [J].
KATRINAK, KA ;
ZYGARLICKE, CJ .
FUEL PROCESSING TECHNOLOGY, 1995, 44 (1-3) :71-79
[10]   Influence of shape characteristics of talc mineral on the column flotation behavior [J].
Kursun, H ;
Ulusoy, U .
INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2006, 78 (04) :262-268
12