CONTINOUS PROCESS OF SMELTING METALLIC LEAD DIRECTLY FROM LEAD & SULFUR CONTAINING METERIALS

A material contg. Pb and S is fed into a melting-down zone at one end of a long, horizontal reactor contg. a molten Pb phase below a molten slag phase. The phases are formed by a specific oxidn. potential in the melting-down zone which produces Pb contg. 0.05 - 2% S and prim. Pb rich in Bi. The prim...

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Bibliographic Details
Main Authors SCHWARTZ WERNER, FISHER PETER
Format Patent
LanguageEnglish
Korean
Published 02.07.1986
Edition4
Subjects
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:A material contg. Pb and S is fed into a melting-down zone at one end of a long, horizontal reactor contg. a molten Pb phase below a molten slag phase. The phases are formed by a specific oxidn. potential in the melting-down zone which produces Pb contg. 0.05 - 2% S and prim. Pb rich in Bi. The prim. Pb is removed from the melting-down zone. S in the remaining part of the reactor is a reducing zone in which reducing agents are added to the slag, so a slag with a low Pb content is obtd. together with sec. Pb with a low Bi content. When the raw material contains more than 55% Pb, the prim. Pb in the melting-down zone pref. contains 0.1 - 0.4% S.
Bibliography:Application Number: KR19810002845