Problems in the utilization of domestic manganese ore resources
1. The fine ore with the particle size of 5~0mm has not been treated at all, and most of them are stacked up at present, causing a serious waste of manganese ore resources.
2. In the manganese ore dressing and desliming operation, fine manganese minerals are discarded from the overflow, which affects the improvement of manganese metal recovery rate in the ore dressing operation. It should be considered to study the use of fine magnetic separation, flocculation flotation, selective flocculation and desliming and other desliming processes for recovery.
3. Oxidized manganese ore also contains useful metals such as Co, Ni, Ag and Pb that can be recycled. These metals should be comprehensively recycled as soon as possible to solve the problem of comprehensive utilization of manganese ore resources.
4. There are great differences in mineral composition, intercalation characteristics, structure and structure of oxidized manganese ores from different places. Therefore, the treatment process, product variety and quality requirements are different, and the same process cannot be used.
5. The roasting magnetic separation process, direct reduction process, and pyrometallurgical manganese enrichment process have high production costs and are difficult to be popularized in practical production.
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