Dewatering of calcium carbonate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 26, 2000
Issued Date -
N/A
app pub date -
Feb 23, 1999
filing date -
Dec 13, 1996
priority date (Note) -
Expired
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Abstract
The present invention relates to dewatering of an aqueous slurry of calcium carbonate. More particularly, the present invention relates to the use of non-ionic surfactants in dewatering aqueous slurries of an aragonitic precipitated calcium carbonate. Calcium carbonate slurries dewatered using the non-ionic surfactants of the present invention have higher weight percent solids, decreased dispersant demand, and result in higher productivity.
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