NATURAL HYDROXYAPATITE, OR THE LIKE AND PRODUCTION THEREOF

PURPOSE:To deposit hydroxyapatite, calcium sec. phosphate and calcium tert. phosphate and to utilize them for healthy food, bioceramics, etc., by neutralizing an inorg. acid contg. dissolved boneblack. CONSTITUTION:Boneblack or calcined powdered bones obtd. from stock-breeding waste are dissolved in...

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Bibliographische Detailangaben
Hauptverfasser: YAMAMOTO SATOJI, KARIYA SHINICHI, KIYOTANI YOSHITAMI, YAMAZAKI MIKIO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE:To deposit hydroxyapatite, calcium sec. phosphate and calcium tert. phosphate and to utilize them for healthy food, bioceramics, etc., by neutralizing an inorg. acid contg. dissolved boneblack. CONSTITUTION:Boneblack or calcined powdered bones obtd. from stock-breeding waste are dissolved in an inorg. acid such as hydrochloric acid or phosphoric acid to prepare a soln. This soln. is filtered to remove impurities and the pH of the resulting filtrate is controlled by adding an alkali agent such as NH4OH, NaOH or Ca(OH)2. Hydroxyapatite, calcium sec. phosphate and calcium tert. phosphate are deposited.