Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating
Microwave and conventional heating were employed to synthesize micro-sized hematite powder from hydrous ferrous sulfate, a by-product in the process of titanium pigment manufacture. The TG/DTG analysis was used to study thermal behavior of the industrial ferrous sulfate. Therefore the temperature wh...
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| Format: | Article |
| Language: | English |
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De Gruyter
2013-06-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2012-0121 |
| _version_ | 1818650666994761728 |
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| author | Yu Yan-tao Peng Jin-hui Liu Bing-guo Chen Guo Srinivasakannan C. |
| author_facet | Yu Yan-tao Peng Jin-hui Liu Bing-guo Chen Guo Srinivasakannan C. |
| author_sort | Yu Yan-tao |
| collection | DOAJ |
| description | Microwave and conventional heating were employed to synthesize micro-sized hematite powder from hydrous ferrous sulfate, a by-product in the process of titanium pigment manufacture. The TG/DTG analysis was used to study thermal behavior of the industrial ferrous sulfate. Therefore the temperature which was significant to product was defined. The calcination experiments were carried out to assess the effect of calcination temperature covering three different temperatures (650°C, 750°C and 850°C, respectively). X-ray powder diffraction (XRD) was used to characterize the structure of the product, while the scanning electron microscopy (SEM) was utilized to characterize the morphology of the product. Microwave calcination process resulted in a mixture of hematite and minor magnetite while a considerable amount of magnesium sulfate was detected with the conventional calcination process. The transformation from periclase to magnesium was discussed during the calcinations as well. The conventional heating resulted in porous product while the microwave heating resulted in smaller particle size. |
| first_indexed | 2024-12-17T01:53:51Z |
| format | Article |
| id | doaj.art-9e5420570c5449d892381252bbbfc6da |
| institution | Directory Open Access Journal |
| issn | 0334-6455 2191-0324 |
| language | English |
| last_indexed | 2024-12-17T01:53:51Z |
| publishDate | 2013-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-9e5420570c5449d892381252bbbfc6da2022-12-21T22:07:59ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242013-06-0132330330810.1515/htmp-2012-0121Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional HeatingYu Yan-tao0Peng Jin-hui1Liu Bing-guo2Chen Guo3Srinivasakannan C.4Key Laboratory of Unconventional Metallurgy, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Unconventional Metallurgy, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Unconventional Metallurgy, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKey Laboratory of Unconventional Metallurgy, Ministry of Education, Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaChemical Engineering Department, The Petroleum Institute, Abudhabi, UAEMicrowave and conventional heating were employed to synthesize micro-sized hematite powder from hydrous ferrous sulfate, a by-product in the process of titanium pigment manufacture. The TG/DTG analysis was used to study thermal behavior of the industrial ferrous sulfate. Therefore the temperature which was significant to product was defined. The calcination experiments were carried out to assess the effect of calcination temperature covering three different temperatures (650°C, 750°C and 850°C, respectively). X-ray powder diffraction (XRD) was used to characterize the structure of the product, while the scanning electron microscopy (SEM) was utilized to characterize the morphology of the product. Microwave calcination process resulted in a mixture of hematite and minor magnetite while a considerable amount of magnesium sulfate was detected with the conventional calcination process. The transformation from periclase to magnesium was discussed during the calcinations as well. The conventional heating resulted in porous product while the microwave heating resulted in smaller particle size.https://doi.org/10.1515/htmp-2012-0121hematitemicrowavecalcinationsferrous sulfate |
| spellingShingle | Yu Yan-tao Peng Jin-hui Liu Bing-guo Chen Guo Srinivasakannan C. Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating High Temperature Materials and Processes hematite microwave calcinations ferrous sulfate |
| title | Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating |
| title_full | Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating |
| title_fullStr | Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating |
| title_full_unstemmed | Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating |
| title_short | Investigation on Preparation of Micro-Sized Hematite Powder from Hydrous Ferrous Sulfate Using Microwave and Conventional Heating |
| title_sort | investigation on preparation of micro sized hematite powder from hydrous ferrous sulfate using microwave and conventional heating |
| topic | hematite microwave calcinations ferrous sulfate |
| url | https://doi.org/10.1515/htmp-2012-0121 |
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