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Fluorine vaporization and leaching from Mg slag treated at high temperature
Beifang University of Nationality, Yinchuan, Ningxia.
Beifang University of Nationality, Yinchuan, Ningxia.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
Beifang University of Nationality, Yinchuan, Ningxia.
2013 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, Vol. 726-731, p. 2898-2907Article in journal (Refereed) Published
Abstract [en]

Pidgeon process is used by more than 300 plants in China to produce magnesium (Mg) metal. Fluorite, ranging 2-3%, is often mixed in raw materials to catalyze the Mg production. The Mg slag from the production then contains F of several mass percent. When the Mg slag is used in construction or treated for recycling, possible F pollutions are of concerns. The present study used slag samples containing F of 0.98-2.15% from an Mg factory in northwest China. Both treatments at 1000-1400°C and leaching tests before and after the treatments were conducted for the slag samples. The study results show influences of the treatments on mineral compositions of the samples, which controlled F contents in both the slag samples and leachates. The results are reported and discussed. Some suggestions are also presented to minimize fluorine pollutions and to improve environmental performances of the Pidgeon process

Place, publisher, year, edition, pages
2013. Vol. 726-731, p. 2898-2907
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-27111DOI: 10.4028/www.scientific.net/AMR.726-731.2898ISI: 000333767501084Scopus ID: 2-s2.0-84884939636Local ID: 07264ed3-7c39-4a3b-88b1-ba874e577ec5OAI: oai:DiVA.org:ltu-27111DiVA, id: diva2:1000292
Conference
International Conference on Energy and Environmental Protection : 19/04/2013 - 21/04/2013
Note
Validerad; 2013; 20131028 (ysko); Konferensartikel i tidskriftAvailable from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Yang, Qixing

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