Effect of Fractional Precipitation on Quality of Nanostructured Alumina Produced from Black Aluminium Dross Waste

Abstract:

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Black aluminium dross produced from a local aluminium smelting plant was used in this study. Solvothermal method was used to produce nanostructured alumina from this waste. Initial product obtained is of low quality with 86.9% Al2O3 content and mixed crystalline phases of 71% α-alumina and 29% calcium dodeca aluminate (CaO(Al2O3)6). The introduction of the fractional precipitation stage into the process helps in improving the purity of the alumina product to 96.5% and also produces 100% α-alumina crystalline phase. The study also shows that the crystallite size of the α-alumina products produced from this process is less than 100nm.

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Periodical:

Edited by:

Zainal Arifin Ahmad, Muhd Ambar Yarmo, Fauziah Haji Abdul Aziz, Dr. Meor Yusoff Meor Sulaiman, Badrol Ahmad, Khairul Nizar Ismail, Nik Akmar Rejab

Pages:

24-28

DOI:

10.4028/www.scientific.net/AMR.173.24

Citation:

Y. M.S. Meor et al., "Effect of Fractional Precipitation on Quality of Nanostructured Alumina Produced from Black Aluminium Dross Waste", Advanced Materials Research, Vol. 173, pp. 24-28, 2011

Online since:

December 2010

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$35.00

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