Process for the recovery and separation of arsenic from antimony
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United States of America Patent
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May 5, 1992
Issued Date -
N/A
app pub date -
Jan 29, 1991
filing date -
Aug 25, 1987
priority date (Note) -
Expired
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Abstract
Fume generated by roasting speiss is contacted with an oxygen-containing gas at an elevated temperature for a sufficient time to product arsenic and antimony products which may be separated from each other by means such as condensation. Further, in the roasting of antimony-containing phases (such as speiss) the presence of arsenic can enhance the volatility of the antimony.
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