The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant
The physical, chemical and mineralogical characterization of the constituents of magnesium-rich synthetic gypsum produced in a rare earth-refining plant located in Gebeng, Pahang, Malaysia was conducted through elemental chemical analysis, scanning electron microscopy with Energy Dispersive X-ray (E...
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MDPI AG
2021
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| Online Access: | http://psasir.upm.edu.my/id/eprint/95559/ http://psasir.upm.edu.my/id/eprint/95559/1/The%20physico-chemical%20and%20mineralogical%20characterization%20of%20Mg-rich%20synthetic%20gypsum%20produced%20in%20a%20rare%20earth%20refining%20plant.pdf |
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| author | Ayanda, Fatai Arolu Mohd Anuar, Mohd Firdaus Zaibon, Syaharudin Jusop, Shamshuddin |
| author_facet | Ayanda, Fatai Arolu Mohd Anuar, Mohd Firdaus Zaibon, Syaharudin Jusop, Shamshuddin |
| author_sort | Ayanda, Fatai Arolu |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The physical, chemical and mineralogical characterization of the constituents of magnesium-rich synthetic gypsum produced in a rare earth-refining plant located in Gebeng, Pahang, Malaysia was conducted through elemental chemical analysis, scanning electron microscopy with Energy Dispersive X-ray (EDX)-analyzer, thermal analysis, X-ray fluorescence and X-ray diffraction. The crystalline nature of the by-product was studied using FTIR spectroscopy. Elemental analysis confirmed the presence of Ca and Mg, which are essential macronutrients required by plants and this Ca alongside the high pH (9.17) of MRSG may confer on the material a high acid neutralization capacity. From the result, it was observed that the studied by-product is a heterogeneous crystalline material comprising of gypsum (CaSO4.2H2O) and other major components such as calcium (magnesium) compounds (hydroxide, oxide, silicates, and carbonate) and sulfur. These aggregates may contribute to give an acid neutralization capacity to MRSG. The XRD study of MRSG indicated a high content of gypsum (45.4%), shown by the d-spacing of 7.609 Å (2-theta 11.63) in the diffractogram. The infrared absorption spectra of MRSG indicate close similarities to mined gypsum. The results of the characterization indicated that MRSG has valuable properties that can promote its use in amending soil fertility constraints on nutrient-deficient tropical acid soils. |
| first_indexed | 2025-11-15T13:13:04Z |
| format | Article |
| id | upm-95559 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T13:13:04Z |
| publishDate | 2021 |
| publisher | MDPI AG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-955592022-08-02T07:11:34Z http://psasir.upm.edu.my/id/eprint/95559/ The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant Ayanda, Fatai Arolu Mohd Anuar, Mohd Firdaus Zaibon, Syaharudin Jusop, Shamshuddin The physical, chemical and mineralogical characterization of the constituents of magnesium-rich synthetic gypsum produced in a rare earth-refining plant located in Gebeng, Pahang, Malaysia was conducted through elemental chemical analysis, scanning electron microscopy with Energy Dispersive X-ray (EDX)-analyzer, thermal analysis, X-ray fluorescence and X-ray diffraction. The crystalline nature of the by-product was studied using FTIR spectroscopy. Elemental analysis confirmed the presence of Ca and Mg, which are essential macronutrients required by plants and this Ca alongside the high pH (9.17) of MRSG may confer on the material a high acid neutralization capacity. From the result, it was observed that the studied by-product is a heterogeneous crystalline material comprising of gypsum (CaSO4.2H2O) and other major components such as calcium (magnesium) compounds (hydroxide, oxide, silicates, and carbonate) and sulfur. These aggregates may contribute to give an acid neutralization capacity to MRSG. The XRD study of MRSG indicated a high content of gypsum (45.4%), shown by the d-spacing of 7.609 Å (2-theta 11.63) in the diffractogram. The infrared absorption spectra of MRSG indicate close similarities to mined gypsum. The results of the characterization indicated that MRSG has valuable properties that can promote its use in amending soil fertility constraints on nutrient-deficient tropical acid soils. MDPI AG 2021 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/95559/1/The%20physico-chemical%20and%20mineralogical%20characterization%20of%20Mg-rich%20synthetic%20gypsum%20produced%20in%20a%20rare%20earth%20refining%20plant.pdf Ayanda, Fatai Arolu and Mohd Anuar, Mohd Firdaus and Zaibon, Syaharudin and Jusop, Shamshuddin (2021) The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant. Sustainability, 13 (9). art. no. 4840. pp. 1-14. ISSN 2071-1050 https://www.mdpi.com/2071-1050/13/9/4840 10.3390/su13094840 |
| spellingShingle | Ayanda, Fatai Arolu Mohd Anuar, Mohd Firdaus Zaibon, Syaharudin Jusop, Shamshuddin The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant |
| title | The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant |
| title_full | The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant |
| title_fullStr | The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant |
| title_full_unstemmed | The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant |
| title_short | The physico-chemical and mineralogical characterization of Mg-rich synthetic gypsum produced in a rare earth refining plant |
| title_sort | physico-chemical and mineralogical characterization of mg-rich synthetic gypsum produced in a rare earth refining plant |
| url | http://psasir.upm.edu.my/id/eprint/95559/ http://psasir.upm.edu.my/id/eprint/95559/ http://psasir.upm.edu.my/id/eprint/95559/ http://psasir.upm.edu.my/id/eprint/95559/1/The%20physico-chemical%20and%20mineralogical%20characterization%20of%20Mg-rich%20synthetic%20gypsum%20produced%20in%20a%20rare%20earth%20refining%20plant.pdf |