HYDROXYAPATITE SILICA COMPOSITE POROUS ADSORBENT AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an adsorbent comprising a hydroxyapatite silica composite porous body having high adsorbability with respect to heavy metals or protein, hardly dissolved in water and having excellent water resistance and water permeability, and to provide its manufacturing method.;SOLUTION: Phosphoric acid is made to react with a calcium silicate compound not only to convert a calcium component to crystalline hydroxyapatite but also to convert a silica component to porous silica to manufacture the hydroxyapatite silica composite porous comprising a composite of crystalline hydroxyapatite and porous silica.;COPYRIGHT: (C)2008,JPO&INPIT