METHOD FOR PRODUCING HYDROXYAPATITE-CONTAINING BODY, HYDROXYAPATITE-ZEOLITE COMPLEX, HYDROXYAPATITE, HYDROXYAPATITE-TITANIUM OXIDE COMPLEX AND HYDROXYAPATITE-ZEOLITE-TITANIUM OXIDE COMPLEX, AND FUNCTIONAL FIBER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing hydroxyapatite complex or the like from Ca-containing papermaking sludge incineration ash or the like, and to provide a functional fiber carrying the hydroxyapatite complex or the like obtained by the method on a fibrous substrate.;SOLUTION: This method for producing a hydroxyapatite complex or the like comprises treating the following mixtures with an alkali: a mixture obtained by adding a phosphate or the like to Ca-containing papermaking sludge incineration ash or the like; a mixture obtained by adding a phosphate or the like to a filtrate obtained by adding an acid to Ca-containing papermaking sludge incineration ash or the like and filtrating; a mixture obtained by adding a phosphate or the like to Ca component- and titanium oxide-containing papermaking sludge incineration ash or the like; a mixture obtained by adding titanium oxide and a phosphate or the like to a filtrate obtained by adding an acid to Ca-containing papermaking sludge incineration ash or the like and filtrating; a mixture obtained by adding a phosphate or the like, an Si component and an Al component to Ca-containing papermaking sludge incineration ash or the like; and a mixture obtained by adding a phosphate or the like, an Si component and an Al component to Ca component- and titanium oxide-containing papermaking sludge incineration ash or the like. This functional fiber is obtained by carrying a hydroxyapatite complex or the like obtained by these methods on a fibrous substrate.;COPYRIGHT: (C)2007,JPO&INPIT