11

Cleaning of fine and ultrafine coal

R.Q. Honaker,     University of KentuckyUSA

J. Kohmuench,     Eriez Manufacturing,USA,

G.H. Luttrell,     Virginia Tech,USA

Abstract:

Fine coal cleaning involves the use of density-based separators and circuits that utilize the unique characteristics of each unit to achieve the optimum performance. For particles smaller than 0.15 mm, froth flotation is the most effective technology, although density-based separators have shown the potential to be an adequate substitute for difficult-to-float coals.

Key words

fine gravity separators

froth flotation

enhanced gravity separators

spiral concentrators

column flotation

11.1 Introduction

The cleaning of fine coal has a clear advantage over coarse coal ...

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