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Environmental performance of fluorite used to catalyze MgO reduction in pidgeon process
School of Material Science and Engineering, Beifang University of Nationalities, Yinchuan.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
School of Material Science and Engineering, Beifang University of Nationalities, Yinchuan.
School of Material Science and Engineering, Beifang University of Nationalities, Yinchuan.
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2012 (English)Conference paper, Meeting abstract (Refereed)
Abstract [en]

Environmental performances of fluorite used as catalyzer for chemical reaction between MgO and Si were investigated by performing pilot scale experiments of Mg production. F amounts of 0.012-0.116 kg were added in the charged briquettes and Mg slag generated from the chemical reaction in most of the tests weighted 4.26-4.96 kg with F contents ranging 0.21-2.52%. Based on high recoveries of F, 83-100%, in the slag after the reaction, it is estimated that there are little or no F compounds leaving the retorts during the pilot tests. However, high amount of F, 72.9 mg/kg, was leached out from an Mg slag sample obtained from an Mg plant, making it necessary to decrease amount of fluorite used as catalyzer for the reaction or to improve operation conditions, thus, enhancing rate for chemical reaction between MgO and Si in Pidgeon process

Place, publisher, year, edition, pages
2012. Vol. 577, 31-38 p.
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-39815DOI: 10.4028/www.scientific.net/AMR.577.31Local ID: eb2e9c25-e904-4aaa-9c26-04d5789e8aa7OAI: oai:DiVA.org:ltu-39815DiVA: diva2:1013333
Conference
International conference on Energy Material, Chemical Engineering and Mining Engineering : 15/09/2012 - 16/09/2012
Note
Validerad; 2012; 20121204 (ysko)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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Yang, Qixing
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Sustainable Process Engineering

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