Process and an apparatus for producing calcium carbonate via an enzymatic pathway
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United States of America Patent
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Issued Date -
Jun 15, 2006
app pub date -
Jul 16, 2003
filing date -
Jul 16, 2002
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Abstract
The invention relates to a method for improving the production yield of precipitated calcium carbonate (PCC). The improvement resides in the use of an enzymatic bioreactor that supplies HCO.sub.3 into the reaction enabling to produce PCC without bubbling gaseous carbon dioxide in the aqueous solution. The present invention has an industrial applicability, namely in the pulp and paper industry.
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