Wong, Y.W. and Woon, H.S. and Tan, C.Y. (2014) Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment. Materials Research Innovations, 18 (S6). pp. 159-163.
Full text not available from this repository.Abstract
This work proposes a method of converting local iron ores into colour pigments to add commercial and technical values to the commodity. Iron ores were subjected to hammer-crushing and two milling techniques (low-energy ball milling and high-energy milling) to produce submicron or ultrafine pigment particles. Effects of different milling duration, speed and charge type on the particle size were investigated. X-ray diffraction and energy-dispersive X-ray spectroscopy scans revealed that the ores contain hematite and goethite phases, with 54% of Fe and 35.38% of O. Particle size analysis showed that high-energy milling (14 hours, 11 mm charge, 550 rev min(-1)) was effective in producing particles as small as 1.379 mu m. Commision Internationale de l'Eclairage L* a* b* colour values measured were L* of 49.7, a* of 21.2 and b* of 15.8.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Iron ore; Hematite; Colour pigment; Ball milling; High-energy ball milling; Particle size; SSA; CIE L*a*b* colour values |
| Depositing User: | Dr Mohd Faizal Hamzah |
| Date Deposited: | 30 Dec 2015 08:54 |
| Last Modified: | 30 Dec 2015 08:54 |
| URI: | http://eprints.um.edu.my/id/eprint/15464 |
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