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有碳存在时,在真空感应炉内造适量的碱性渣,可有效的脱去金属钴中的硫,脱硫率可达78.5～98％;在真空
In the presence of carbon, making an appropriate amount of alkaline slag in a vacuum induction furnace can effectively remove the sulfur in the metallic cobalt, and the desulfurization rate can reach 78.5-98%; under vacuum