Treatment of high sulfate containing quicklime
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United States of America Patent
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-
Feb 5, 2008
Grant Date -
Feb 15, 2007
app pub date -
Jul 26, 2006
filing date -
Aug 11, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method is shown for controlling the presence of soluble sulfate ions in a lime slaking operation in which a source of quicklime is combined with slaking water to form calcium hydroxide product. A complexing agent is added to either the quicklime or the slaking water which is effective to tie up the soluble sulfate ions otherwise available in solution, whereby the agglomeration of calcium hydroxide product is acceptably controlled.
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