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Treatments of magnesium slag to recycle waste from 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.
2012 (English)In: Advanced Materials Research, ISSN 1022-6680, E-ISSN 1662-8985, 1657-1667 p.Article in journal (Refereed) Published
Abstract [en]

Magnesium slag powder from a local magnesium plant was treated to improve the volume stability for its application as building materials. The slag was mixed with borates, pressed into briquettes, and then sintered at high temperature. SEM studies show that at the higher temperature Ca 2SiO4 polymorphs were stabilized by Na and B ions in the added borates. The free MgO content in the slag was also decreased by the sintering treatment. The slag powder, after mixing with 0.4-0.6% of borates and sintered at 1200°C in 5-6 hours, has become volume stable aggregates. It is then possible to use the treated slag in constructions, saving valuable natural resources and decreasing the global warming impact from magnesium production via Pidgeon process

Place, publisher, year, edition, pages
2012. 1657-1667 p.
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-37935DOI: 10.4028/www.scientific.net/AMR.418-420.1657Local ID: c22ad116-21bf-4766-93e3-2fa032cd3a4eOAI: oai:DiVA.org:ltu-37935DiVA: diva2:1011434
Conference
International Conference on Advances in Materials and Manufacturing : 16/12/2011 - 18/12/2011
Note
Validerad; 2012; 20120112 (andbra); Konferensartikel i tidskriftAvailable from: 2016-10-03 Created: 2016-10-03 Last updated: 2017-11-30Bibliographically approved

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Yang, Qixing

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