Aiman A., Mokaizh and Jun Haslinda, Shariffuddin (2021) Synthesis of α-alumina developed from waste aluminium using precipitation technique. In: Journal of Physics: Conference Series, The 1st International Conference on Fundamental, Applied Sciences and Technology (ICoFAST 2021) , 15-16 March 2021 , Perlis, Malaysia, & Hadhramout, Yemen. pp. 1-8., 1900 (012002). ISSN 1742-6588
|
Pdf
Synthesis of α-alumina developed from waste aluminium using precipitation technique.pdf Available under License Creative Commons Attribution. Download (703kB) | Preview |
Abstract
The heated aluminium containers were added to a solution of 8.0 M H2SO4 solution, which eventually yielded a solution of Al2(SO4)3 after a series of stepwise precipitation reactions. Al2(SO4)3 was presented in large quantities of H2SO4 in the white semi-fluid solution; there were some unreacted aluminium parts. The solution was subjected to filtration and then mixed with anion in a ratio of 2:3, this resulted in the formation of a white layer Al2(SO4)3•18H2O. Thereafter, Al2(SO4)3•18H2O was calcined in an electric oven for 2 h at various calcination temperatures (500, 700, 900, 1100, and 1300°C). The mixtures were heated and cooled at a rate of 10°C/min. XRD was employed to investigate variations in temperature and determination of elemental accumulation of alumina produced. Ah(SO4)3•18H2O was due to a series of aluminium compositions produced from dehydration. All transitions from low temperatures to aluminium phases were converted to high-temperature α-Al2O3. The results obtained from X-ray disintegration showed that the α-Al2O3 phase was obtained at a reaction temperature of about 1150°C and above.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Calcination; Phase-transformation; Precipitation; α-Alumina |
| Subjects: | Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
| Faculty/Division: | Faculty of Chemical & Natural Resources Engineering College of Engineering Institute of Postgraduate Studies |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 26 Oct 2022 01:50 |
| Last Modified: | 26 Oct 2022 01:50 |
| URI: | http://umpir.ump.edu.my/id/eprint/35396 |
| Download Statistic: | View Download Statistics |
Actions (login required)
 |
View Item |