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Heat treatment of black dross for the production of a value added material - a preliminary study
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Process Science.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Process Science.
2012 (English)In: EPD Congress 2012, John Wiley & Sons, 2012, 353-360 p.Conference paper, Published paper (Refereed)
Abstract [en]

The potential use of Black Dross (BD) as a raw material for the production of refractories, fluxing agents and glasses is the main motivation of the present study. Heat treatment experiments were carried out in Ar, and under reduced pressure (20 Pa), to evaluate the salt removal efficiency. The chemical composition of the BD after heat treatment was investigated by SEM-EDS and XRD analyses. Based on the present results, it is established that the salt starts to evaporate at ≈1273 K in Ar, and under reduced pressure. The salt removal efficiency in a 20 g sample was found to increase in both cases as a function of time and temperature. Moreover, in Ar the chlorine concentration was lowered to 0.3 wt% after heat treatment at 1523 K for 10 hours. Under reduced pressure, however, 0.2 wt% residual chlorine was obtained after 8 hours at 1473 K.

Place, publisher, year, edition, pages
John Wiley & Sons, 2012. 353-360 p.
Keyword [en]
Aluminum, Black dross, Heat treatment, Waste processing
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-89186DOI: 10.1002/9781118359341.ch41ISI: 000327399600041Scopus ID: 2-s2.0-84860830509ISBN: 978-111829140-5 (print)OAI: oai:DiVA.org:kth-89186DiVA: diva2:502790
Conference
2012 EPD Congress - TMS 2012 Annual Meeting and Exhibition;Orlando, FL; 11 March 2012 through 15 March 2012
Note

QC 20120803

Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2014-01-14Bibliographically approved

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