Actions for Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, 1 April--30 June 1994 [electronic resource].

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Micro-agglomerate flotation for deep cleaning of coal. Quarterly progress report, 1 April--30 June 1994 [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1994.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
11 pages : digital, PDF file
Additional Creators
United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The authors are investigating the use of a hybrid process--Micro-agglomerate flotation--which is a combination of oil-agglomeration and froth flotation. The basic concepts is to use small quantities of oil to promote the formation of dense micro-agglomerates with minimal entrapment of water and mineral particles, and to use froth flotation to extract these micro-agglomerates from the water/dispersed-mineral phase. Since the floating units are agglomerates (about 30--50 μm in size) rather than individual coal particles (1--10 μm) the problems of froth overload water/mineral carryover should be significantly alleviated. The process involves at least five phases: two or more solids (coal and mineral), two liquids (oil and water) and one gas (air). It is necessary to maintain precise control over the chemistry of the liquid phases in order to promote the interfacial reactions and interactions between phases necessary to ensure selectivity. Kinetics as well as thermodynamic factors may be critical in determining overall system response. The research program has been organized into several specific tasks: Task 1, interfacial studies; Task 2, emulsification; Task 3, agglomerate growth and structure; and Task 4, agglomerate flotation. This report summarizes the status of Tasks 2, 3, and 4.
Report Numbers
E 1.99:doe/pc/92543--t7
doe/pc/92543--t7
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
07/01/1994.
"doe/pc/92543--t7"
"DE94018842"
"AA1525050"
Hogg, R.; Chander, S.
Pennsylvania State Univ., University Park, PA (United States)
Type of Report and Period Covered Note
Quarterly; 04/01/1994 - 06/30/1994
Funding Information
FG22-92PC92543
View MARC record | catkey: 13836858