Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics
In recent years, regenerative thermal oxidizer (RTO) has been widely used in the petroleum industry, chemical industry, etc. The massive storage required by solid waste has become a serious problem. Due to their chemical composition, bauxite tailings as raw materials for high-temperature thermal sto...
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MDPI AG
2023-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/21/6900 |
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| author | Qi Wang Minghao Fang Xin Min Pengpeng Du Zhaohui Huang Yangai Liu Xiaowen Wu Yulin Liu Changmiao Liu Feihui Huang |
| author_facet | Qi Wang Minghao Fang Xin Min Pengpeng Du Zhaohui Huang Yangai Liu Xiaowen Wu Yulin Liu Changmiao Liu Feihui Huang |
| author_sort | Qi Wang |
| collection | DOAJ |
| description | In recent years, regenerative thermal oxidizer (RTO) has been widely used in the petroleum industry, chemical industry, etc. The massive storage required by solid waste has become a serious problem. Due to their chemical composition, bauxite tailings as raw materials for high-temperature thermal storage ceramics show enormous potential in the fields of research and application. In this study, we propose a method for preparing ferric-rich and high specific storage capacity by adding Fe<sub>2</sub>O<sub>3</sub> powder to bauxite tailings. Based on a 7:3 mass ratio of bauxite tailings to lepidolite, Fe<sub>2</sub>O<sub>3</sub> powder with different mass fractions (7 wt%, 15 wt%, 20 wt%, 30 wt%, and 40 wt%) was added to the ceramic material to improve the physical properties and thermal storage capacity of thermal storage ceramics. The results showed that ferric-rich thermal storage ceramics with optimal performance were obtained by holding them at a sintering temperature of 1000 °C for 2 h. When the Fe<sub>2</sub>O<sub>3</sub> content was 15 wt%, the bulk density of the thermal storage ceramic reached 2.53 g/cm<sup>3</sup>, the compressive strength was 120.81 MPa, and the specific heat capacity was 1.06 J/(g·K). This study has practical guidance significance in the preparation of high thermal storage ceramics at low temperatures and low costs. |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T11:26:35Z |
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| spelling | doaj.art-ad36afc9ec7f4621b0ad548673a2d5b12023-11-10T15:07:16ZengMDPI AGMaterials1996-19442023-10-011621690010.3390/ma16216900Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage CeramicsQi Wang0Minghao Fang1Xin Min2Pengpeng Du3Zhaohui Huang4Yangai Liu5Xiaowen Wu6Yulin Liu7Changmiao Liu8Feihui Huang9Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaEngineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaEngineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaEngineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaEngineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaEngineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaEngineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources, Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing 100083, ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou 450006, ChinaZhengzhou Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological Sciences, Zhengzhou 450006, ChinaShandong Aofu Environmental Technology Co., Ltd., Dezhou 251599, ChinaIn recent years, regenerative thermal oxidizer (RTO) has been widely used in the petroleum industry, chemical industry, etc. The massive storage required by solid waste has become a serious problem. Due to their chemical composition, bauxite tailings as raw materials for high-temperature thermal storage ceramics show enormous potential in the fields of research and application. In this study, we propose a method for preparing ferric-rich and high specific storage capacity by adding Fe<sub>2</sub>O<sub>3</sub> powder to bauxite tailings. Based on a 7:3 mass ratio of bauxite tailings to lepidolite, Fe<sub>2</sub>O<sub>3</sub> powder with different mass fractions (7 wt%, 15 wt%, 20 wt%, 30 wt%, and 40 wt%) was added to the ceramic material to improve the physical properties and thermal storage capacity of thermal storage ceramics. The results showed that ferric-rich thermal storage ceramics with optimal performance were obtained by holding them at a sintering temperature of 1000 °C for 2 h. When the Fe<sub>2</sub>O<sub>3</sub> content was 15 wt%, the bulk density of the thermal storage ceramic reached 2.53 g/cm<sup>3</sup>, the compressive strength was 120.81 MPa, and the specific heat capacity was 1.06 J/(g·K). This study has practical guidance significance in the preparation of high thermal storage ceramics at low temperatures and low costs.https://www.mdpi.com/1996-1944/16/21/6900bauxite tailingsthermal storage ceramicspecific heat capacitybulk densityRTO |
| spellingShingle | Qi Wang Minghao Fang Xin Min Pengpeng Du Zhaohui Huang Yangai Liu Xiaowen Wu Yulin Liu Changmiao Liu Feihui Huang Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics Materials bauxite tailings thermal storage ceramic specific heat capacity bulk density RTO |
| title | Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics |
| title_full | Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics |
| title_fullStr | Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics |
| title_full_unstemmed | Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics |
| title_short | Preparation and Performance of Ferric-Rich Bauxite-Tailing-Based Thermal Storage Ceramics |
| title_sort | preparation and performance of ferric rich bauxite tailing based thermal storage ceramics |
| topic | bauxite tailings thermal storage ceramic specific heat capacity bulk density RTO |
| url | https://www.mdpi.com/1996-1944/16/21/6900 |
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