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. 1980 Dec 19;210(4476):1356-8.
doi: 10.1126/science.210.4476.1356.

Chemical species in fly ash from coal-burning power plants

L D Hulett Jr, A J Weinberger, K J Northcutt, M Ferguson

Chemical species in fly ash from coal-burning power plants

L D Hulett Jr et al. Science. .

Abstract

Fly ash specimens from four power plants in the Tennessee Valley Authority system have been separated into three matrices: glass, mullite-quartz, and magnetic spinel. Chemical species of trace elements are defined to a large extent by the matrices that contain them. The magnetic component of fly ash is ferrite. The mullite-quartz phase is relatively pure and can be recovered as a resource.

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