Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment
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 p...
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| Format: | Article |
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Maney Publishing
2014
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| _version_ | 1825720684571000832 |
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| author | Wong, Y.W. Woon, H.S. Tan, C.Y. |
| author_facet | Wong, Y.W. Woon, H.S. Tan, C.Y. |
| author_sort | Wong, Y.W. |
| collection | UM |
| description | 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. |
| first_indexed | 2024-03-06T05:38:52Z |
| format | Article |
| id | um.eprints-15464 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:38:52Z |
| publishDate | 2014 |
| publisher | Maney Publishing |
| record_format | dspace |
| spelling | um.eprints-154642015-12-30T08:54:10Z http://eprints.um.edu.my/15464/ Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment Wong, Y.W. Woon, H.S. Tan, C.Y. 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. Maney Publishing 2014 Article PeerReviewed 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. |
| spellingShingle | Wong, Y.W. Woon, H.S. Tan, C.Y. Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment |
| title | Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment |
| title_full | Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment |
| title_fullStr | Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment |
| title_full_unstemmed | Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment |
| title_short | Purification and conversion of Malaysian iron ores into industrial grade iron oxide colour pigment |
| title_sort | purification and conversion of malaysian iron ores into industrial grade iron oxide colour pigment |
| work_keys_str_mv | AT wongyw purificationandconversionofmalaysianironoresintoindustrialgradeironoxidecolourpigment AT woonhs purificationandconversionofmalaysianironoresintoindustrialgradeironoxidecolourpigment AT tancy purificationandconversionofmalaysianironoresintoindustrialgradeironoxidecolourpigment |