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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Main Authors: Woon, Hai Song, Naidu, Keerthan, Ewe, Lay Sheng, Ean, Lee Woen, Lim, Kean Pah
Format: Article
Language:English
Published: Chiang Mai University 2024
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Online Access:http://psasir.upm.edu.my/id/eprint/111986/1/cmjs-full-Date-2024-07-01-933543899.pdf
http://psasir.upm.edu.my/id/eprint/111986/
https://epg.science.cmu.ac.th/ejournal/journal-detail.php?id=11837
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spelling my.upm.eprints.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
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
topic Magnetic materials
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
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.
format Article
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
title 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_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_sort synthesis and characterization of red pigment from acid regeneration plant (arp) by-product via rod milling process
publisher Chiang Mai University
publishDate 2024
url http://psasir.upm.edu.my/id/eprint/111986/1/cmjs-full-Date-2024-07-01-933543899.pdf
http://psasir.upm.edu.my/id/eprint/111986/
https://epg.science.cmu.ac.th/ejournal/journal-detail.php?id=11837
_version_ 1811686074486882304
score 13.211869