Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal
Research on the novel technology of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal has been conducted. According to the response surface design and the analysis of results, orthogonal experiments have been conducted on the major factors and effects...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2013-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2013/1450-53391200040F.pdf |
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| _version_ | 1832572203066982400 |
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| author | Feng Y. Cai Z. Li H. Du Z. Liu X. |
| author_facet | Feng Y. Cai Z. Li H. Du Z. Liu X. |
| author_sort | Feng Y. |
| collection | DOAJ |
| description | Research on the novel technology of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal has been conducted. According to the response surface design and the analysis of results, orthogonal experiments have been conducted on the major factors and effects of the factors on the manganese reduction efficiency have been studied. The quadratic model between the manganese reduction efficiency and the factors has been established. Meanwhile, the contour or 3D response surface of the manganese reduction efficiency among various factors has been presented. The maximum manganese reduction efficiency could be optimized to nearly 100%, when the mass ratio of stone coal to pyrolusite was 2.5:1, the roasting temperature of stone coal was 1080ºC, the roasting temperature of pyrolusite was 775ºC, and the roasting time was 2h. The results of the manganese reduction efficiency of the actual experiments were close to those of the fitting model by the verification experiments, indicating that the optimum solution has a relatively high reliability. Other low-grade pyrolusite such as Guangxi pyrolusite (China), Hunan pyrolusite (China), and Guizhou pyrolusite (China) were tested and all these materials responded well giving nearly 100% manganese reduction efficiency. |
| format | Article |
| id | doaj-art-5b264c204785451ebcef016655346287 |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-5b264c204785451ebcef0166553462872025-02-02T11:29:47ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392013-01-01491334110.2298/JMMB120525040FResponse surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coalFeng Y.Cai Z.Li H.Du Z.Liu X.Research on the novel technology of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal has been conducted. According to the response surface design and the analysis of results, orthogonal experiments have been conducted on the major factors and effects of the factors on the manganese reduction efficiency have been studied. The quadratic model between the manganese reduction efficiency and the factors has been established. Meanwhile, the contour or 3D response surface of the manganese reduction efficiency among various factors has been presented. The maximum manganese reduction efficiency could be optimized to nearly 100%, when the mass ratio of stone coal to pyrolusite was 2.5:1, the roasting temperature of stone coal was 1080ºC, the roasting temperature of pyrolusite was 775ºC, and the roasting time was 2h. The results of the manganese reduction efficiency of the actual experiments were close to those of the fitting model by the verification experiments, indicating that the optimum solution has a relatively high reliability. Other low-grade pyrolusite such as Guangxi pyrolusite (China), Hunan pyrolusite (China), and Guizhou pyrolusite (China) were tested and all these materials responded well giving nearly 100% manganese reduction efficiency.http://www.doiserbia.nb.rs/img/doi/1450-5339/2013/1450-53391200040F.pdfresponse surface optimizationfluidized roastingcoupling technologylow-grade pyrolusite reductionstone coal pretreatment |
| spellingShingle | Feng Y. Cai Z. Li H. Du Z. Liu X. Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal Journal of Mining and Metallurgy. Section B: Metallurgy response surface optimization fluidized roasting coupling technology low-grade pyrolusite reduction stone coal pretreatment |
| title | Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal |
| title_full | Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal |
| title_fullStr | Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal |
| title_full_unstemmed | Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal |
| title_short | Response surface optimization of fluidized roasting reduction of low-grade pyrolusite coupling with pretreatment of stone coal |
| title_sort | response surface optimization of fluidized roasting reduction of low grade pyrolusite coupling with pretreatment of stone coal |
| topic | response surface optimization fluidized roasting coupling technology low-grade pyrolusite reduction stone coal pretreatment |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2013/1450-53391200040F.pdf |
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