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Synthesis and characterization of inorganic colour pigment from spent acid

This paper proposes a new method of recycling spent acid from local cold rolling industry into iron oxide pigment that to be applied to the roof tiles. Pickling is a process in which a hot-rolled steel that has rusty scale is dipped into hydrochloric acid prior to further processing. The waste acid...

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Main Authors: Woon H.S., Nicklaane K., Ewe L.S., Lim K.P., Ismail I., Tan C.Y.
Other Authors: 56287541700
Format: Conference Paper
Published: American Institute of Physics Inc. 2023
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spelling my.uniten.dspace-235322023-05-29T14:50:07Z Synthesis and characterization of inorganic colour pigment from spent acid Woon H.S. Nicklaane K. Ewe L.S. Lim K.P. Ismail I. Tan C.Y. 56287541700 57209318423 58032789200 24776093100 55123311400 16029485400 This paper proposes a new method of recycling spent acid from local cold rolling industry into iron oxide pigment that to be applied to the roof tiles. Pickling is a process in which a hot-rolled steel that has rusty scale is dipped into hydrochloric acid prior to further processing. The waste acid contains valuable elements that can be synthesized into iron oxide pigment materials. Through neutralization between a waste acid and three different alkalis namely sodium hydroxide, potassium hydroxide and calcium hydroxide, sludge is formed and further calcined into iron oxide pigment. Colour values include L?ab? were measured using chromameter. X-ray diffraction (XRD) and scanning electron microscopy (SEM) revealed that sodium hydroxide and potassium hydroxide are the suitable alkalis in this study. Calcination at 600�C produced red iron oxide pigment materials with good colour properties. � 2018 Author(s). Final 2023-05-29T06:50:07Z 2023-05-29T06:50:07Z 2018 Conference Paper 10.1063/1.5066986 2-s2.0-85067365782 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85067365782&doi=10.1063%2f1.5066986&partnerID=40&md5=51bab9932c46ea7ed4df3664e5388c8f https://irepository.uniten.edu.my/handle/123456789/23532 2031 20030 All Open Access, Bronze American Institute of Physics Inc. Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description This paper proposes a new method of recycling spent acid from local cold rolling industry into iron oxide pigment that to be applied to the roof tiles. Pickling is a process in which a hot-rolled steel that has rusty scale is dipped into hydrochloric acid prior to further processing. The waste acid contains valuable elements that can be synthesized into iron oxide pigment materials. Through neutralization between a waste acid and three different alkalis namely sodium hydroxide, potassium hydroxide and calcium hydroxide, sludge is formed and further calcined into iron oxide pigment. Colour values include L?ab? were measured using chromameter. X-ray diffraction (XRD) and scanning electron microscopy (SEM) revealed that sodium hydroxide and potassium hydroxide are the suitable alkalis in this study. Calcination at 600�C produced red iron oxide pigment materials with good colour properties. � 2018 Author(s).
author2 56287541700
author_facet 56287541700
Woon H.S.
Nicklaane K.
Ewe L.S.
Lim K.P.
Ismail I.
Tan C.Y.
format Conference Paper
author Woon H.S.
Nicklaane K.
Ewe L.S.
Lim K.P.
Ismail I.
Tan C.Y.
spellingShingle Woon H.S.
Nicklaane K.
Ewe L.S.
Lim K.P.
Ismail I.
Tan C.Y.
Synthesis and characterization of inorganic colour pigment from spent acid
author_sort Woon H.S.
title Synthesis and characterization of inorganic colour pigment from spent acid
title_short Synthesis and characterization of inorganic colour pigment from spent acid
title_full Synthesis and characterization of inorganic colour pigment from spent acid
title_fullStr Synthesis and characterization of inorganic colour pigment from spent acid
title_full_unstemmed Synthesis and characterization of inorganic colour pigment from spent acid
title_sort synthesis and characterization of inorganic colour pigment from spent acid
publisher American Institute of Physics Inc.
publishDate 2023
_version_ 1806428225113423872
score 13.211869

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