Method for the flash oxidation of metal concentrates
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United States of America Patent
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Jun 21, 1983
Issued Date -
N/A
app pub date -
Oct 17, 1980
filing date -
May 11, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A burner for the flash oxidation of particles of metal concentrates has three downwardly directed, concentrically mounted tubes each having a venturi nozzle on the discharge end thereof. Finely divided metal concentrates introduced into the annular space between the inner tube and the intermediate tube are accelerated by high pressure oxygen introduced through the inner tube to substantially the velocity of an oxidizing gas introduced into the annular space between the intermediate tube and the outer tube. Means are provided for adjusting the extent that the nozzles on the ends of the inner tube and intermediate tube extend into the nozzles on the ends of the intermediate and outer tubes respectively.
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