PROCESS FOR PREPARING HYDROXYLAPATITE
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United States of America Patent
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Issued Date -
Jan 21, 2010
app pub date -
May 17, 2007
filing date -
May 18, 2006
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Abstract
A process for preparing hydroxylapatite from a calcium carbonate-containing algae comprising the steps of: (a) converting at least some of the calcium carbonate in the algae to calcium oxide without changing the porosity of the algae; and (b) reacting the so-formed material of step (a) with phosphate ions in water.
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