No coin nor oath required. For personal study only.
QSL technology provided the basis for the new lead smelter, which started operation from May 1992 at Onsan Refinery of Korea Zinc Co.. Ltd. The smelter is designed to treat not only various types of lead concentrates hut also secondary materials coming from the zinc plant without special pretreatment.
In this paper, the operating experience and results of QSL smelter, especially the injection of gases and coal to the melt, will he presented with major operation parameters and data.
Fire refining copper by reagents injection
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