Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine
Serpentinized peridotite samples—considered nowadays as deposited waste at the magnesite mine of Gerakini (Chalkidiki, N. Greece)—were collected, and their chemical and mineralogical characterization analyzed with Energy-Dispersive X-ray Fluorescence (ED-XRF) and X-ray Diffractometry (XRD). Dry magn...
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MDPI AG
2022-03-01
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| Series: | Materials Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4605/5/1/123 |
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| author | Dimitra Papargyriou Evangelos Tzamos Andreas Kasinos Polykarpos Papageorgiou Manassis Mitrakas Anastasios Zouboulis |
| author_facet | Dimitra Papargyriou Evangelos Tzamos Andreas Kasinos Polykarpos Papageorgiou Manassis Mitrakas Anastasios Zouboulis |
| author_sort | Dimitra Papargyriou |
| collection | DOAJ |
| description | Serpentinized peridotite samples—considered nowadays as deposited waste at the magnesite mine of Gerakini (Chalkidiki, N. Greece)—were collected, and their chemical and mineralogical characterization analyzed with Energy-Dispersive X-ray Fluorescence (ED-XRF) and X-ray Diffractometry (XRD). Dry magnetic separation was used as a convenient enrichment method; however, no significant effect was shown in the chemical composition of separated (magnetic and non-magnetic) fractions, except for small increases in the olivine, antigorite and enstatite contents, which were observed in the non-magnetic fraction. Finally, the calcination of ground peridotites at 1520 °C, with the addition of CaO, Al<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub>, presented a negative effect on the structure of the products with regard to their main refractory properties. In contrast, the addition of Cr<sub>2</sub>O<sub>3</sub> and ΜgO mineral oxides showed improved refractory properties when compared with the initial material. |
| first_indexed | 2024-03-11T06:14:31Z |
| format | Article |
| id | doaj.art-ee6aa4cbb81448e79e18ce2d5cbef00f |
| institution | Directory Open Access Journal |
| issn | 2673-4605 |
| language | English |
| last_indexed | 2024-03-11T06:14:31Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials Proceedings |
| spelling | doaj.art-ee6aa4cbb81448e79e18ce2d5cbef00f2023-11-17T12:25:27ZengMDPI AGMaterials Proceedings2673-46052022-03-015112310.3390/materproc2021005123Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite MineDimitra Papargyriou0Evangelos Tzamos1Andreas Kasinos2Polykarpos Papageorgiou3Manassis Mitrakas4Anastasios Zouboulis5Grecian Magnesite S.A., Gerakini, 63100 Athens, GreeceDepartment of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceGrecian Magnesite S.A., Gerakini, 63100 Athens, GreeceGrecian Magnesite S.A., Gerakini, 63100 Athens, GreeceDepartment of Chemical Engineering, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceDepartment of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceSerpentinized peridotite samples—considered nowadays as deposited waste at the magnesite mine of Gerakini (Chalkidiki, N. Greece)—were collected, and their chemical and mineralogical characterization analyzed with Energy-Dispersive X-ray Fluorescence (ED-XRF) and X-ray Diffractometry (XRD). Dry magnetic separation was used as a convenient enrichment method; however, no significant effect was shown in the chemical composition of separated (magnetic and non-magnetic) fractions, except for small increases in the olivine, antigorite and enstatite contents, which were observed in the non-magnetic fraction. Finally, the calcination of ground peridotites at 1520 °C, with the addition of CaO, Al<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub>, presented a negative effect on the structure of the products with regard to their main refractory properties. In contrast, the addition of Cr<sub>2</sub>O<sub>3</sub> and ΜgO mineral oxides showed improved refractory properties when compared with the initial material.https://www.mdpi.com/2673-4605/5/1/123magnesiteduniteserpentinitechemical–mineralogical characterizationmagnetic separationthermal treatment |
| spellingShingle | Dimitra Papargyriou Evangelos Tzamos Andreas Kasinos Polykarpos Papageorgiou Manassis Mitrakas Anastasios Zouboulis Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine Materials Proceedings magnesite dunite serpentinite chemical–mineralogical characterization magnetic separation thermal treatment |
| title | Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine |
| title_full | Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine |
| title_fullStr | Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine |
| title_full_unstemmed | Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine |
| title_short | Investigation of Magnetic Separation and Thermal Treatment Effects, Combined with Additives (Mineral Oxides), on Serpentinized Peridotites from the Gerakini (Chalkidiki, N. Greece) Magnesite Mine |
| title_sort | investigation of magnetic separation and thermal treatment effects combined with additives mineral oxides on serpentinized peridotites from the gerakini chalkidiki n greece magnesite mine |
| topic | magnesite dunite serpentinite chemical–mineralogical characterization magnetic separation thermal treatment |
| url | https://www.mdpi.com/2673-4605/5/1/123 |
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