Method for the removal of lead from waste products
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United States of America Patent
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-
Nov 26, 1991
Issued Date -
N/A
app pub date -
Aug 17, 1990
filing date -
Aug 24, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for the removal of lead from a waste product comprising the steps of delivering silica to a combustion chamber, heating the silica within the combustion chamber to a temperature of greater than 1500.degree. F., mixing a lead-containing waste with the heated silica so as to form a leaded glass, and removing the leaded glass from the combustion chamber. The silica material is sand. The process further includes the step of removing oxygen from the chamber prior to the step of heating. The oxygen is removed by injecting an inert gas into the chamber so as to displace oxygen from the chamber. The silica is heated to a temperature suitable for forming molten glass. The remaining constituents of the waste product are heated so as to become diassociated gaseous components.
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