Alternative additives to enhance slurry dewatering
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United States of America Patent
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Apr 25, 2017
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Aug 27, 2015
app pub date -
Feb 26, 2014
filing date -
Feb 26, 2014
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Abstract
The invention provides methods and compositions for improving dewatering of Bayer Process alumina trihydrate slurry. The method comprises adding an R-Succinic Compound (such as octadecenyl succinic acid, hexadecenyl succinic acid, and/or dodecenyl succinic acid) to the slurry. The R-Succinic Compound removes water that would otherwise be trapped within the filtered slurry cake and therefore reduces the energy needed to calcine the resulting solids.
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