97/02241 Manufacture of powdered coke fo
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Article
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1997
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Elsevier Science
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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 pretreatmen