Surface chemical problems in coal flotation
作者:
S. R. Taylor,
K. J. Miller,
A. W. Deurbrouck,
期刊:
AIP Conference Proceedings
(AIP Available online 1981)
卷期:
Volume 70,
issue 1
页码: 344-356
ISSN:0094-243X
年代: 1981
DOI:10.1063/1.32948
出版商: AIP
数据来源: AIP
摘要:
As the use of coal increases and more fine material is produced by mining and processing, the need for improved methods of coal beneficiation increases. While flotation techniques can help meet these needs, the technique is beset with many problems. These problems involve surface chemical and interfacial properties of the coal‐mineral‐water slurry systems used in coal flotation. The problems associated with coal flotation include non‐selectivity, inefficient reagent utilization, and excessive variablity of results. These problems can be broadely classified as a lack of predictability. The present knowledge of coal flotation is not sufficient, in terms of surface chemical parameters, to allow prediction of the flotation response of a given coal. In this paper, some of the surface chemical properties of coal and coal minerals that need to be defined will be discussed in terms of the problems noted above and their impact on coal cleaning.
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