Why is mineral processing an indispensable part of the metallurgical industry?

The ore mined from the mine has a generally low grade. For example, many iron ore is only 20-30% iron, copper ore copper only 0.5-1%. Such low-grade ore is directly smelted, which is not only technically difficult, but also economically uneconomical. Therefore, for low-grade ore, it is necessary to use a beneficiation method before the smelting to separate the gangue and useful minerals in the ore, so that the grade is improved, making the raw materials suitable for smelting.

In addition, the ore often contains several useful ingredients (such as copper, lead , zinc or copper-zinc, copper and iron, etc.), they must be recycled as much as possible, to achieve the purpose only the ore dressing is completed

In addition to ingredients, ores often contain harmful impurities. Smelting of harmful impurities into the metal will affect the metal, sometimes complicate or even make the smelting process difficult. For example, in copper and lead ore, the harmful impurities are

Zinc; harmful impurities in zinc ore are iron; harmful impurities such as sulfur and phosphorus in iron ore. These harmful impurities must be used in the beneficiation process prior to smelting and may be removed or reduced to the extent permitted by product quality standards.

Therefore, with the development of the metallurgical industry, the status and role of mineral processing is very important, and it has become an important part of the metallurgical industry.

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