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SPINELS IN THE FLY ASH OF POWER PLANT RYBNIK (POLAND)

Agnieszka Klupa, Zdzislaw Adamczyk, Andrzej Harat

First published: 2017-06-20https://doi.org/10.5593/sgem2017/11/s04.134View metrics

Abstract

The Power Plant Rybnik (Elektrownia Rybnik) is one of many in Poland, which is coal-fired. Fly ash, as is well known, are combustion by-products, which are mineral residue from burning coal. Their phase composition depends mainly on the quality of fuel (coal) and combustion conditions. In the mineral composition of the examined ashes one has identified minerals such as: glaze, quartz, mullite, spinels, hematite, and unburnt coal. Spinels present in the fly ash can be a source of some metals, and due to the magnetic properties of some of them, are easy to separate from the ashes. The paper presents the variation of the chemical composition of spinels found in fly ash from the Power Plant Rybnik (Poland). As the test results indicate, representatives of this group of minerals in the system: (i) Fe2+/(Mg2++Fe2+) пїЅ Fe3+/(Al3++Fe3+) are: magnesioferrite, magnetite, ferrian pleonaste and hercynite, (ii) Cr пїЅ Al пїЅ Fe3+: Al-magnetite i Fe-spinels, (iii) Fe3+ пїЅ Al3+ пїЅ Cr3+: magnetite and hercynite, (iv) rutile пїЅ hematite пїЅ wustite: spinels similar to the composition of magnetite.

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Publication details

Title
SPINELS IN THE FLY ASH OF POWER PLANT RYBNIK (POLAND)
Authors
Agnieszka Klupa, Zdzislaw Adamczyk, Andrzej Harat
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining
Publisher
STEF92 Technology
Year
2017
Pages
1051-1058
SWS Citekey
Klupa2017410511058
ISSN
1314-2704
ISBN
978-619-7105-98-8
Language
en
Publication type
Conference Paper
Keywords
fly ashmagnesioferritemagnetiteferrian pleonastehercynite
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