Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process
Iron o xide waste from acid regeneration plants (ARP) is often discarded due to its non-profitability. This research aims to introduce a value-added process to convert iron oxide waste into red pigment via rod milling process. The iron oxide waste collected from ARP was grinded with a rod milling ma...
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| Format: | Article |
| Language: | English |
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Chiang Mai University
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/111986/ http://psasir.upm.edu.my/id/eprint/111986/1/cmjs-full-Date-2024-07-01-933543899.pdf |
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| author | Woon, Hai Song Naidu, Keerthan Ewe, Lay Sheng Ean, Lee Woen Lim, Kean Pah |
| author_facet | Woon, Hai Song Naidu, Keerthan Ewe, Lay Sheng Ean, Lee Woen Lim, Kean Pah |
| author_sort | Woon, Hai Song |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Iron o xide waste from acid regeneration plants (ARP) is often discarded due to its non-profitability. This research aims to introduce a value-added process to convert iron oxide waste into red pigment via rod milling process. The iron oxide waste collected from ARP was grinded with a rod milling machine at 30 rpm for 24 hours. The ground product was then mixed with industrial-grade red pigment in various ratios. The mixed samples were then rod-milled again into ultra-fine particles. A total of seven samples were prepared, applied onto a canvas and analysed by energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) methods. From the analyses, the existence, composition, and orientation of iron oxide were established. The waste-derived red pigments were subsequently subjected to particle size analysis on a scanning electron microscopy (SEM) platform, with results showcasing the efficiency of the rod milling process. Colour-related properties of the samples before and after canvas application were investigated using the L*a*b* system with a chromameter. Empirical outcomes indicated that the a* value plays an important role in determining the redness of the sample. Overall, the a* values obtained were above 15 and gradually increased in accordance to the amount of industrial-grade red pigment added. The oil absorptivity of red pigments was also tested via an oil absorptivity test. Notably, the assay signified that particle size and porosity affect the amount of oil that can be absorbed by the pigment. |
| first_indexed | 2025-11-15T14:10:53Z |
| format | Article |
| id | upm-111986 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:10:53Z |
| publishDate | 2024 |
| publisher | Chiang Mai University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1119862024-09-17T02:17:14Z http://psasir.upm.edu.my/id/eprint/111986/ Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process Woon, Hai Song Naidu, Keerthan Ewe, Lay Sheng Ean, Lee Woen Lim, Kean Pah Iron o xide waste from acid regeneration plants (ARP) is often discarded due to its non-profitability. This research aims to introduce a value-added process to convert iron oxide waste into red pigment via rod milling process. The iron oxide waste collected from ARP was grinded with a rod milling machine at 30 rpm for 24 hours. The ground product was then mixed with industrial-grade red pigment in various ratios. The mixed samples were then rod-milled again into ultra-fine particles. A total of seven samples were prepared, applied onto a canvas and analysed by energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD) methods. From the analyses, the existence, composition, and orientation of iron oxide were established. The waste-derived red pigments were subsequently subjected to particle size analysis on a scanning electron microscopy (SEM) platform, with results showcasing the efficiency of the rod milling process. Colour-related properties of the samples before and after canvas application were investigated using the L*a*b* system with a chromameter. Empirical outcomes indicated that the a* value plays an important role in determining the redness of the sample. Overall, the a* values obtained were above 15 and gradually increased in accordance to the amount of industrial-grade red pigment added. The oil absorptivity of red pigments was also tested via an oil absorptivity test. Notably, the assay signified that particle size and porosity affect the amount of oil that can be absorbed by the pigment. Chiang Mai University 2024 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/111986/1/cmjs-full-Date-2024-07-01-933543899.pdf Woon, Hai Song and Naidu, Keerthan and Ewe, Lay Sheng and Ean, Lee Woen and Lim, Kean Pah (2024) Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process. Chiang Mai Journal of Science, 51 (4). art. no. e2024059. pp. 1-10. ISSN 0125-2526 https://epg.science.cmu.ac.th/ejournal/journal-detail.php?id=11837 Magnetic materials 10.12982/CMJS.2024.059 |
| spellingShingle | Magnetic materials Woon, Hai Song Naidu, Keerthan Ewe, Lay Sheng Ean, Lee Woen Lim, Kean Pah Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process |
| title | Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process |
| title_full | Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process |
| title_fullStr | Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process |
| title_full_unstemmed | Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process |
| title_short | Synthesis and characterization of red pigment from acid regeneration plant (ARP) by-product via rod milling process |
| title_sort | synthesis and characterization of red pigment from acid regeneration plant (arp) by-product via rod milling process |
| topic | Magnetic materials |
| url | http://psasir.upm.edu.my/id/eprint/111986/ http://psasir.upm.edu.my/id/eprint/111986/ http://psasir.upm.edu.my/id/eprint/111986/ http://psasir.upm.edu.my/id/eprint/111986/1/cmjs-full-Date-2024-07-01-933543899.pdf |