High intensity lead smelting process
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United States of America Patent
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-
Apr 30, 1985
Grant Date -
N/A
app pub date -
Nov 18, 1982
filing date -
Nov 26, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Lead is obtained from lead sulfide ores or concentrates without prior sintering or roasting by the steps of adding the lead sulfide to a molten slag, injecting sufficient oxide to below the surface of the molten slag and vigorously agitating the slag whereby substantially to oxidize the lead sulfides to lead oxides, and then reducing the lead oxides. The slag is preferably agitated by means of a lance. The reduction stage may follow the oxidation stage in the same vessel or may be conducted in another vessel.
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