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Conference Proceedings

AusIMM Annual Conference, Perth, March 1996

Conference Proceedings

AusIMM Annual Conference, Perth, March 1996

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Areation Catalysts for Upgrading Reduced Ilmenite to Synthetic Rutile

Laboratory-scale experiments were conducted in a mechanically stirred
aeration vessel to determine the rusting abilities of aerated water in the
presence of various catalysts compared to the industrially used
ammonium chloride. The catalysts used were tartaric acid and citric acid,
firstly by themselves, and then in later experiments mixed with
ammonium chloride. From these experiments it was found that leaching of iron from
reduced ilmenite in the presence of either tartaric acid or its sodium salt
was much slower than in the presence of ammonium chloride. Citric acid
or its sodium salt also give a slower rate of leaching than the ammonium
chloride system, but citric acid and its sodium salt mixed in equal
proportions produced a rate of leaching approximately twice as fast as the
standard ammonium chloride system. When tartaric acid was mixed with ammonium chloride the leaching
rate was found to be equivalent to the leaching rate of the same amount of
ammonium chloride alone, thus indicating that tartaric acid made no
contribution to the leaching in this svstem_
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  • Areation Catalysts for Upgrading Reduced Ilmenite to Synthetic Rutile
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  • Published: 1996
  • PDF Size: 0.673 Mb.
  • Unique ID: P199601004

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