Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock
Magnesia is mainly produced from carbonate sources (magnesite (MgCO<sub>3</sub>)), and seawater brines (MgCl<sub>2</sub>). The calcination of magnesite and the precipitation of brine using quicklime (CaO) are processes that have significant CO<sub>2</sub> footprin...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Materials Proceedings |
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| Online Access: | https://www.mdpi.com/2673-4605/5/1/19 |
| _version_ | 1797610439023001600 |
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| author | David Konlechner Gregor Kappacher |
| author_facet | David Konlechner Gregor Kappacher |
| author_sort | David Konlechner |
| collection | DOAJ |
| description | Magnesia is mainly produced from carbonate sources (magnesite (MgCO<sub>3</sub>)), and seawater brines (MgCl<sub>2</sub>). The calcination of magnesite and the precipitation of brine using quicklime (CaO) are processes that have significant CO<sub>2</sub> footprints, even before considering the burning of hydrocarbons required to meet the energy demand. There are also significant amounts of silica-based magnesia raw materials available worldwide, such as serpentine, dunite, and olivine. It is possible to produce synthetic MgO of high purity using a HCl-based process. HCl can be fully recycled and reused. If a carbon-neutral heating source such as electricity, synthetic fuel, or plasma is used for the pyrohydrolysis process, the result is the production of MgO via a carbon-neutral process. |
| first_indexed | 2024-03-11T06:14:09Z |
| format | Article |
| id | doaj.art-6068af0fd5d04222aec592ddf9e88e96 |
| institution | Directory Open Access Journal |
| issn | 2673-4605 |
| language | English |
| last_indexed | 2024-03-11T06:14:09Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials Proceedings |
| spelling | doaj.art-6068af0fd5d04222aec592ddf9e88e962023-11-17T12:23:58ZengMDPI AGMaterials Proceedings2673-46052021-11-01511910.3390/materproc2021005019Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine FeedstockDavid Konlechner0Gregor Kappacher1KON Chemical Solutions e.U., 1020 Vienna, AustriaTenova Branch Office Austria, 1110 Vienna, AustriaMagnesia is mainly produced from carbonate sources (magnesite (MgCO<sub>3</sub>)), and seawater brines (MgCl<sub>2</sub>). The calcination of magnesite and the precipitation of brine using quicklime (CaO) are processes that have significant CO<sub>2</sub> footprints, even before considering the burning of hydrocarbons required to meet the energy demand. There are also significant amounts of silica-based magnesia raw materials available worldwide, such as serpentine, dunite, and olivine. It is possible to produce synthetic MgO of high purity using a HCl-based process. HCl can be fully recycled and reused. If a carbon-neutral heating source such as electricity, synthetic fuel, or plasma is used for the pyrohydrolysis process, the result is the production of MgO via a carbon-neutral process.https://www.mdpi.com/2673-4605/5/1/19HCl processserpentinemagnesiasilicazero wastecarbon neutral |
| spellingShingle | David Konlechner Gregor Kappacher Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock Materials Proceedings HCl process serpentine magnesia silica zero waste carbon neutral |
| title | Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock |
| title_full | Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock |
| title_fullStr | Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock |
| title_full_unstemmed | Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock |
| title_short | Achieving the Carbon-Neutral Production of Magnesia and Silica Products Using a HCl-Based Process in Serpentine Feedstock |
| title_sort | achieving the carbon neutral production of magnesia and silica products using a hcl based process in serpentine feedstock |
| topic | HCl process serpentine magnesia silica zero waste carbon neutral |
| url | https://www.mdpi.com/2673-4605/5/1/19 |
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