Effects of microwave heating on microstructures and structure properties of the manganese ore

被引：45

作者：

Chen, Guo ^{[1
]}

Li, Lei ^{[1
]}

Tao, Changyuan ^{[2
]}

Liu, Zuohua ^{[2
]}

Chen, Nanxiong ^{[3
]}

Peng, Jinhui ^{[1
]}

机构：

[1] Yunnan Minzu Univ, Joint Res Ctr Int Cross Border Ethn Reg Biomass C, Key Lab Resource Clean Convers Ethn Reg Educ Dept, Kunming 650500, Peoples R China

[2] Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China

[3] CITIC Dameng Min Ind Iimited, Nanning 530028, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 657卷

关键词：

Thermal analysis; Structural; Manganese ore; Microwave heating; Decomposition reaction; REDUCTION; DIOXIDE;

D O I：

10.1016/j.jallcom.2015.10.147

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present work attempts to investigate the formation-decomposition reaction of the manganese ore. Thermodynamic analysis indicates that the decomposition reaction of the manganese ore was feasible by adjusting the roasting temperature and duration time. The peak intensity of Mn3O4 phase of the microwave heated products increases with the increase of microwave heating temperature. The microwave treated manganese ore appears irregular with numerous small cracks and pits, which was caused by the decomposition reaction of MnCO3 phase and CaCO3 phase under microwave heating. It was concluded that microwave heating can be applied effectively and efficiently to the calcination processes of the manganese ore. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：515 / 518

页数：4

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