Continuous method of removing tin from lead
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United States of America Patent
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Jan 29, 1985
Grant Date -
N/A
app pub date -
Jul 15, 1983
filing date -
Jul 16, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a continuous method of removing tin from lead. The method comprises maintaining a pool of molten lead at a temperature of from 510.degree. C. to 570.degree. C., introducing molten lead into the pool, injecting chlorine and oxygen into the molten lead in an amount to react with tin present as an impurity in the lead to form a tin-containing dross and then separating the lead from the dross. Separation may either be performed in the reaction vessel itself or in a separate settlement vessel.
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