Recovery of metal values from complex sulfides
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United States of America Patent
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Oct 18, 1983
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N/A
app pub date -
May 7, 1982
filing date -
May 7, 1982
priority date (Note) -
Expired
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Abstract
Metal values, such as copper, lead and zinc, are recovered from complex sulfides, e.g., ores or smelter flue dusts, by means of aqueous leaching in the presence of oxygen and CaCl.sub.2 or BaCl.sub.2 at elevated temperature.
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