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Efficient Extraction of Manganese from Low-Grade Pyrolusite by a Sawdust Pyrolysis Reduction Roasting-Acid Leaching Process

文献类型：期刊论文

作者Ju, Jinrong1,2,3; Feng, Yali1; Li, Haoran2,3; Zhong, Xiaofeng1
刊名JOM
出版日期2022-02-28
页码11
ISSN号1047-4838
DOI10.1007/s11837-022-05215-1
英文摘要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.
WOS关键词THERMOCHEMICAL CHARACTERISTICS ; DIELECTRIC-PROPERTIES ; REDUCING AGENTS ; BIOMASS ; ORE ; KINETICS ; MIXTURES ; OPTIMIZATION ; WASTES ; PYRITE
资助项目China Ocean Mineral Resources RD Association[JS-KTHT-2019-01]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000762149900005
出版者SPRINGER
资助机构China Ocean Mineral Resources RD Association
源URL[http://ir.ipe.ac.cn/handle/122111/52160]  
专题中国科学院过程工程研究所
通讯作者Ju, Jinrong
作者单位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
推荐引用方式
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.

入库方式： OAI收割

来源：过程工程研究所

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