High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain)
The production of porcelain stoneware has experienced a considerable increase. Therefore, it was necessary to undertake an investigation that would allow knowing the mineralogical evolution that porcelain stoneware undergoes during the firing process, as well as establishing the influence of the for...
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MDPI AG
2020-04-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/9/3114 |
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| author | Manuel Miguel Jordán Sergio Meseguer Francisco Pardo María Adriana Montero |
| author_facet | Manuel Miguel Jordán Sergio Meseguer Francisco Pardo María Adriana Montero |
| author_sort | Manuel Miguel Jordán |
| collection | DOAJ |
| description | The production of porcelain stoneware has experienced a considerable increase. Therefore, it was necessary to undertake an investigation that would allow knowing the mineralogical evolution that porcelain stoneware undergoes during the firing process, as well as establishing the influence of the formation of mullite and other mineral or vitreous phases and their quantification. The firing transformations of mine spoils associated with mined coal in the Utrillas-Escucha-Estercuel and Ariño-Andorra areas are studied in this paper. The mineralogical composition of the bulk mine spoils is kaolinite, illite, chlorite, and smectites (in traces), with quartz and feldspar, and minor hematite, calcite, and dolomite. The main objective is to understand the generation of high-temperature mineral phases after firing, and their quantification. The formation of mullite and other high-temperature phases are studied from samples that include variable proportions of illite. Samples with a high content of illite generate mullite at 995 °C. Cristobalite was not detected as a high-temperature phase. Mullite is the most abundant mineral. The hercynite content is higher at low temperatures (995 °C), and hematite content is higher at 1150 °C. The vitreous phase represents about 50% of fired bodies. Despite observing a porous microstructure, the non-porous areas are well sintered. |
| first_indexed | 2024-03-10T20:08:49Z |
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| id | doaj.art-c9d3fa36ebab415eb55327a9357fa0d1 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T20:08:49Z |
| publishDate | 2020-04-01 |
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| spelling | doaj.art-c9d3fa36ebab415eb55327a9357fa0d12023-11-19T23:04:21ZengMDPI AGApplied Sciences2076-34172020-04-01109311410.3390/app10093114High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain)Manuel Miguel Jordán0Sergio Meseguer1Francisco Pardo2María Adriana Montero3Department of Agrochemistry and Environment (GEA-UMH), University Miguel Hernández, Elche. Avda. de la Universidad s/n, 03202 Elche, Alicante, SpainUnit of Applied Mineralogy, Jaume I University, Campus de Riu Sec s/n, 1280 Castellón, SpainDepartment of Education Sciences, CEU Cardenal Herrera University, Calle Grecia 31, 12006 Castellón, SpainDepartment of Agrochemistry and Environment (GEA-UMH), University Miguel Hernández, Elche. Avda. de la Universidad s/n, 03202 Elche, Alicante, SpainThe production of porcelain stoneware has experienced a considerable increase. Therefore, it was necessary to undertake an investigation that would allow knowing the mineralogical evolution that porcelain stoneware undergoes during the firing process, as well as establishing the influence of the formation of mullite and other mineral or vitreous phases and their quantification. The firing transformations of mine spoils associated with mined coal in the Utrillas-Escucha-Estercuel and Ariño-Andorra areas are studied in this paper. The mineralogical composition of the bulk mine spoils is kaolinite, illite, chlorite, and smectites (in traces), with quartz and feldspar, and minor hematite, calcite, and dolomite. The main objective is to understand the generation of high-temperature mineral phases after firing, and their quantification. The formation of mullite and other high-temperature phases are studied from samples that include variable proportions of illite. Samples with a high content of illite generate mullite at 995 °C. Cristobalite was not detected as a high-temperature phase. Mullite is the most abundant mineral. The hercynite content is higher at low temperatures (995 °C), and hematite content is higher at 1150 °C. The vitreous phase represents about 50% of fired bodies. Despite observing a porous microstructure, the non-porous areas are well sintered.https://www.mdpi.com/2076-3417/10/9/3114Teruelclay spoilsfiring transformationsphase generationvitreous phaseXRD |
| spellingShingle | Manuel Miguel Jordán Sergio Meseguer Francisco Pardo María Adriana Montero High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) Applied Sciences Teruel clay spoils firing transformations phase generation vitreous phase XRD |
| title | High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) |
| title_full | High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) |
| title_fullStr | High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) |
| title_full_unstemmed | High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) |
| title_short | High-Temperature Mineral Formation after Firing Clay Materials Associated with Mined Coal in Teruel (Spain) |
| title_sort | high temperature mineral formation after firing clay materials associated with mined coal in teruel spain |
| topic | Teruel clay spoils firing transformations phase generation vitreous phase XRD |
| url | https://www.mdpi.com/2076-3417/10/9/3114 |
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