Method and apparatus for the production of aluminum
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United States of America Patent
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Jan 11, 2011
Grant Date -
Oct 12, 2006
app pub date -
Mar 24, 2006
filing date -
Apr 1, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a method for the continuous production of aluminum from alumina including a first step of converting alumina (Al.sub.2O.sub.3) into aluminum sulfide (Al.sub.2S.sub.3) and a second step of separation of aluminum from aluminum sulfide in a separating reactor. Wherein in the first step in a conversion reactor alumina is dissolved in a molten salt to form a melt and a sulfur containing gas is fed through the melt whereby the sulfur containing gas acts as a reagent to convert at least part of the alumina into aluminum sulfide and at least part of the melt is used in the second step. Further the invention relates to an apparatus for operating the method.
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