Process for the treatment of phosphogypsum and in particular of phosphogypsum leachates
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United States of America Patent
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May 8, 2012
Grant Date -
Dec 10, 2009
app pub date -
Jun 9, 2009
filing date -
Jun 10, 2008
priority date (Note) -
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Abstract
The present invention describes a process for treating phosphogypsum and in particular the related leachate that comprises the steps of feeding a continuous leachate flow with a dry content of below 5% by weight into a concentration unit heated to a predetermined temperature and equipped with dedicated mixing means, and continuously discharging a concentrated leachate flow having a dry content comprised between 20% and 95% by weight from the concentration unit.
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