Studies of the relationship between mineral matter and grinding properties for low-rank coals

被引：53

作者：

Ural, S ^{[1
]}

Akyildiz, M

机构：

[1] Cukurova Univ, Dept Min Engn, TR-01330 Adana, Turkey

[2] Cukurova Univ, Dept Geol Engn, TR-01330 Adana, Turkey

来源：

INTERNATIONAL JOURNAL OF COAL GEOLOGY | 2004年 / 60卷 / 01期

关键词：

low-rank coal; Hardgrove Grindability; mineral matter; X-ray diffraction; quantitative analysis; Turkey;

D O I：

10.1016/j.coal.2004.07.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Investigations into the effects of mineral matter content on Hardgrove Grindability Index (HGI) were carried out on some low-rank Turkish coals. Quantitative X-ray diffraction (XRD) analyses were carried out using an interactive data processing system (SIROQUANT(TM)) based on Rietveld interpretation methods. Selective leaching processes were used to determine the water and acid-soluble contents of coal samples. Among the coal seams tested, the HGI values of Elbistan coal samples presented a large range from 39 to 83, whereas Tufanbeyli coal samples ranged from 48 to 69. Treatment of the coal with water, ammonium acetate, and hydrochloric acid showed that a considerable part of the ash-forming inorganic matter occurs in water-soluble, acid-soluble, or ion-exchangeable form. Grindability tests on samples of varied water and acid-soluble content showed a significant effect of water and acid-soluble contents on HGI. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：81 / 84

页数：4

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