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Surface chemistry fundamentals in fine coal processing

J.S. Laskowski,     University of British Columbia, Canada

Abstract:

It is argued that the wettability which is fundamental for flotation also determines the properties of fine coal aqueous suspensions and thus controls not only flotation but also flotation products dewatering and handling either as dry products or as suspensions (e.g. coal-water slurries). Typical fine particle technology problems appear also in gravity separation methods in which fine magnetite aqueous suspensions are used as a medium. In this chapter an attempt is made to look at these various unit operations in some unified way based on the fact the main aspects of these unit operations result from the fundamental ...

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