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A Survey of Ash Sources for Mineral Recovery

Published online by Cambridge University Press:  25 February 2011

J. S. Watson
J. S. Watson*
Affiliation:
Chemical Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
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Abstract

Twenty-two ash samples from utility companies across the country were studied to determine their potential use for mineral recovery. Most tests were limited to chemical analyses and determination of leachable metal values in the ashes, but samples from two utilities were examined in more detail. The more detailed analyses included physical as well as chemical properties. This work was part of a broad-based effort supported by the Electric Power Research Institute (EPRI), and the results from this study were used in economic assessments of mineral recovery from fly ash made by Kaiser Engineers in another part of the EPRI program. Although the compositions and properties of the ash samples varied considerably, only two of the 22 ash samples studied appeared to be unsuitable for mineral recovery. These results indicate that large portions of the ash produced in this country are suitable for potential resource recovery, but further work to evaluate potential upgrade of the leached ash residue is recommended.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 65: Symposium T – Fly Ash and Coal Conversion By-Products II , 1985 , 59
Copyright
Copyright © Materials Research Society 1986

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