Fire manganese ore beneficiation process Enrichment: Fire manganese ore enrichment process is high phosphorus, high iron ores refractory poor one selected division method is generally called manganese-rich slag. The essence is a high-temperature sorting method for selectively separating manganese, phosphorus and iron by controlling the temperature of manganese, phosphorus and iron in different temperatures in a blast furnace or an electric furnace.
China has been using fire law for nearly 40 years. In 1959, Hunan Shaoyang Zijiang Iron Works was tested on a 9.4m3 small blast furnace and obtained preliminary results. Then, in 1962, Shanghai Shijingshan ferroalloy plant and blast furnace steel mills are in a manganese-rich slag. In 1975, Hunan Agateshan manganese ore blast furnace not only produced manganese-rich slag, but also recovered lead , silver and pig iron (commonly known as semi-steel) at the bottom of the furnace, providing a basis for comprehensive utilization. After entering the 1980s, the production of manganese-rich slag has developed rapidly. The production of manganese-rich slag has been developed in Hunan, Hubei, Guangdong, Guangxi, Jiangxi, Liaoning, and Jilin.
The enrichment process of the fire method is simple, the production is stable, and the iron and phosphorus in the ore can be effectively separated to obtain manganese-rich, low-iron, low-phosphorus manganese-rich slag, and the manganese-rich slag generally contains Mn 35% to 45%. Mn/Fe?12～38, P/Mn<0.002, is a high-quality manganese-based alloy raw material, and it is also an artificial rich ore that is difficult to achieve the above three indexes at the same time. Therefore, the enrichment of fire method is a promising method for mineral processing in China for high-phosphorus high-iron and low-manganese refractory ore.
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