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Fluidized roasting reduction kinetics of low-grade pyrolusite coupling with pretreatment of stone coal
Feng, Ya-li1; Cai, Zhen-lei1; Li, Hao-ran2; Du, Zhu-wei2; Liu, Xin-wei1
2013-03-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume20Issue:3Pages:221-227
AbstractBased on the fluidized roasting reduction technology of low-grade pyrolusite coupling with pretreatment of stone coal, the manganese reduction efficiency was investigated and technical conditions were optimized. It is found that the optimum manganese reduction efficiency can be up to 98.97% under the conditions that the mass ratio of stone coal to pyrolusite is 3: 1, the roasting temperature of stone coal is 1000 degrees C, the roasting temperature of pyrolusite is 800 degrees C, and the roasting time is 2 h. Other low-grade pyrolusite ores in China from Guangxi, Hunan, and Guizhou Provinces were tested and all these minerals responded well, giving similar to 99% manganese reduction efficiency. Meanwhile, the reduction kinetic model has been established. It is confirmed that the reduction process is controlled by the interface chemical reaction. The apparent activation energy is 36.397 kJ/mol.
KeywordPyrolusite Ore Roasting Ore Reduction Fluidized Beds Kinetics Stone Coal
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s12613-013-0716-5
Indexed BySCI
Language英语
WOS KeywordMANGANESE OXIDE ORE ; SULFURIC-ACID ; HYDROGEN ; DIOXIDE
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000315945400001
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13314
Collection研究所(批量导入)
Affiliation1.Univ Sci & Technol Beijing, Sch Civil & Environm Engn, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Feng, Ya-li,Cai, Zhen-lei,Li, Hao-ran,et al. Fluidized roasting reduction kinetics of low-grade pyrolusite coupling with pretreatment of stone coal[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2013,20(3):221-227.
APA Feng, Ya-li,Cai, Zhen-lei,Li, Hao-ran,Du, Zhu-wei,&Liu, Xin-wei.(2013).Fluidized roasting reduction kinetics of low-grade pyrolusite coupling with pretreatment of stone coal.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,20(3),221-227.
MLA Feng, Ya-li,et al."Fluidized roasting reduction kinetics of low-grade pyrolusite coupling with pretreatment of stone coal".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 20.3(2013):221-227.
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