中国发现的钴矿含锰量高，因此呈现出较弱的蓝灰色。

Cobalt ores found in China have a high manganese content, which produces a more muted blue-gray color.

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这种球团矿用于高炉冶炼含锰量较高的生铁，可以改善高炉冶炼技术经济指标和提高锰的回收率。

With using these pellets in blast furnace for making pig iron with higher manganese content the BF operation data improved and the recovery of manganese increased.

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富锰渣高炉煤气具有含尘量多、含水量大、温度高且变幅广等特点。

Blast furnace gas of rich manganese dregs, which has much dust, large moisture, high temperature and wide range, is usually treated by wet collector in our country.

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