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| Efficient Extraction of Manganese from Low-Grade Pyrolusite by a Sawdust Pyrolysis Reduction Roasting-Acid Leaching Process | |
| Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Zhong, Xiaofeng1 | |
| 2022-02-28 | |
| Source Publication | JOM
 |
| ISSN | 1047-4838 |
| Pages | 11 |
| Abstract | In this work, a novel method for extraction of manganese from low-grade pyrolusite by a sawdust pyrolysis reduction roasting-acid leaching process was explored. The reduction roasting was studied systematically, and the mechanism was also explored by thermodynamic and phase change analysis. Results indicate that sawdust was rapidly pyrolyzed at 250-450 degrees C to generate a large amount of reducing gases such as CO, CH4, and H-2, which gradually reduced MnO2 in low-grade pyrolusite to MnO. The reduction process of MnO2 was identified as MnO2 -> Mn2O3 -> Mn3O4 -> MnO. It was proved that MnO2 of low-grade pyrolusite could be reduced effectively to MnO at lower temperature and shorter duration time by sawdust pyrolysis. Meanwhile, the optimum leaching efficiency of 99.45% for manganese could be attained when sawdust dosage was 11% of the mass of low-grade pyrolusite, the roasting temperature was 500 degrees C, and the roasting time was 25 min. |
| DOI | 10.1007/s11837-022-05215-1 |
| Language | 英语 |
| WOS Keyword | THERMOCHEMICAL CHARACTERISTICS ; DIELECTRIC-PROPERTIES ; REDUCING AGENTS ; BIOMASS ; ORE ; KINETICS ; MIXTURES ; OPTIMIZATION ; WASTES ; PYRITE |
| Funding Project | China Ocean Mineral Resources RD Association[JS-KTHT-2019-01] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing |
| Funding Organization | China Ocean Mineral Resources RD Association |
| WOS ID | WOS:000762149900005 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/52161 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Ju, Jinrong |
| Affiliation | 1.Univ Sci & Technol Beijing, Civil & Resource Engn Sch, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Key Lab Biochem Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Ju, Jinrong,Feng, Yali,Li, Haoran,et al. Efficient Extraction of Manganese from Low-Grade Pyrolusite by a Sawdust Pyrolysis Reduction Roasting-Acid Leaching Process[J]. JOM,2022:11. |
| APA | Ju, Jinrong,Feng, Yali,Li, Haoran,&Zhong, Xiaofeng.(2022).Efficient Extraction of Manganese from Low-Grade Pyrolusite by a Sawdust Pyrolysis Reduction Roasting-Acid Leaching Process.JOM,11. |
| MLA | Ju, Jinrong,et al."Efficient Extraction of Manganese from Low-Grade Pyrolusite by a Sawdust Pyrolysis Reduction Roasting-Acid Leaching Process".JOM (2022):11. |
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