Coal Flotation and Fine Coal Utilization, Volume 14

1st Edition

Authors: J. Laskowski
Print ISBN: 9780444505378
eBook ISBN: 9780080529240
Imprint: Elsevier Science
Published Date: 4th July 2001
Page Count: 384
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To stay profitable while complying with environmental regulations requires that the coal industry not only improve fine coal recovery but also finds better ways for its utilization. This is the first monograph on the processing of fine coal which recognizes that all unit operations that handle fine coal depend on coal surface properties, and which in one single volume provides a comprehensive introduction to coal surface chemistry, using it rigorously in treating coal flotation fundamentals and engineering, fine coal manipulation, pelletization and briquetting, and coal-water slurries.

Readers involved in mineral processing, chemical engineering, mining and metallurgical engineering; technical personnel working for reagent suppliers; and scientists researching the field of coal surface chemistry, flotation and fine coal utilization will find this volume of great interest.

Table of Contents


1. Coal Preparation. Unit operations. Coarse coal versus fine coal circuits.
Seam-to-Steam strategy. Role of coal surface properties in fine coal processing. References.

2. Coal Characteristics Related to Coal Preparation. Introduction. Coal classification. Coal petrography. Inorganic matter in coal. Sulfur in coal. Liberation. References.

3. Coal Surface Properties. Introduction.
Coal surface wettability. Contact angles. Electrical charge at coal/water interface. Coal porosity and moisture.
Surface components hypothesis. Patchwork assembly model of coal surface. Effect of coal rank on floatability. Floatability of coal macerals. Experimental methods of characterizing coal wettability. Contact angle measurements on flat surfaces. Contact angle measurements on granular material. References.

4. Coal Floatability. Introduction. Floatability. Equipment. Release analysis. The tree technique. The advanced flotation washability (AWF) procedure. The use of the floatability curves. References.

5. Reagents. Introduction. Reagents. Collectors.
Frothers. Promoters. Coal and pyrite depressant


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© Elsevier Science 2001
Elsevier Science
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About the Author

J. Laskowski

Affiliations and Expertise

Department of Mining and Mineral Process Engineering, The University of British Colombia, 517-6350 Stores Road, Vancouver, BC, Canada V6T 1Z4


@from:B.A. Firth @qu:...this is a well-written text which needs to be available to people involved in this area of coal production. @source:International Journal of Mineral Processing