A review of the beneficiation of low-grade manganese ores by magnetic separation

2020 ◽  
Vol 59 (1) ◽  
pp. 1-16
Author(s):  
Richard Elliott ◽  
Mansoor Barati
Keyword(s):  
Magnetic Separation ◽  
Low Grade ◽  
Manganese Ores

Magnetic Properties of Low Grade Manganese Carbonate Ore

2014 ◽  
Vol 664 ◽  
pp. 38-42
Author(s):  
Yan Wu ◽  
Bin Shi ◽  
Huan Liang ◽  
Wen Ge ◽  
Chun Jie Yan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Separation ◽  
Oxide Phase ◽  
Manganese Carbonate ◽  
Low Grade ◽  
Manganese Ore ◽  
Biomass Fuels ◽  
Rapid Reduction ◽  
Manganese Ores ◽  
Electrolytic Manganese

Rapid reduction roasting of low grade manganese carbonate ore by coal and biomass fuels from Hunan, China was investigated. Magnetic separation behaviors and magnetic properties of raw manganese ore and roasted manganese ores were analyzed. After reduction by coal and biomass fuels, the manganese ores demonstrate a new Mn-Fe oxide phase, showing obvious mixed magnetic behaviors of ferromagnet and paramagnet, and the magnetic susceptibilities of roasting ores rapidly increase to almost two orders of magnitude in comparison of the raw ores. The results show that magnetizing roasting technology could enhanced the magnetic properties of the manganese ores about two orders of magnitude higher than raw manganese ore at low roasting temperature. Thereby, we deduce that the weak magnetic separation combined with high magnetic separation could be adequate for roasted manganese ore to satisfy the requirement of electrolytic manganese industry. Application of biomass in manganese ore roasting process is promising to the effective use of biomass and for decreasing the consumption of fossil fuels in the manganese industry.

Production of manganese (II) sulphate from low-grade manganese ores

2007 ◽  
Vol 14 (3) ◽  
pp. 105-108
Author(s):  
R. I. Razouk ◽  
S. K. Tobia ◽  
M. A. Messiha
Keyword(s):  
Low Grade ◽  
Manganese Ores

scholarly journals Coal-Based Reduction and Magnetic Separation Behavior of Low-Grade Vanadium-Titanium Magnetite Pellets

Minerals ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 86 ◽  
Author(s):  
Gongjin Cheng ◽  
Zixian Gao ◽  
Mengyang Lv ◽  
He Yang ◽  
Xiangxin Xue
Keyword(s):  
Magnetic Separation ◽  
Low Grade ◽  
Magnetite Pellets ◽  
Vanadium Titanium ◽  
Separation Behavior ◽  
Titanium Magnetite

Research on Improving the Classification-Gravity Concentration Technology Based on an Anshan-Type Low-Grade Hematite Ore

2012 ◽  
Vol 454 ◽  
pp. 256-260 ◽  
Author(s):  
Bao Yu Cui ◽  
De Zhou Wei ◽  
Rui Yang Zhang ◽  
Si Yao Zhang
Keyword(s):  
Size Distribution ◽  
Magnetic Separation ◽  
Low Grade ◽  
Flow Sheet ◽  
Gravity Concentration ◽  
Mineralogical Characteristics ◽  
Hematite Ore ◽  
Iron Grade

The beneficiation of Anshan-type low-grade hematite ores attracts more and more attention. Complicated beneficiation flow sheets are necessary to deal this type of ores. Classification-gravity concentration technology is used widely in these flow sheets because of its characteristics. In this paper, grinding characteristics and classification-gravity concentration tests were carried out based on the ore’s mineralogical characteristics. When the ground size of the ore was 75% -0.071mm, through beneficiation by the flow sheet of classification-gravity concentration-middle intensity magnetic separation discarding, a satisfactory concentrate assaying 67.58% Fe, 47.51% recovery was obtained, and the iron grade and yield of the tailings were 5.93% and 39.77% respectively. The controlling of the size distribution and the behavior of finer hematite grains is important and efficiency in beneficiation of Anshan-type hematite ores.

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