METHOD OF TREATING BONE CHARCOAL, PRODUCT OF SAID METHOD, METHOD OF EXTRACTING APATITE FROM UNTREATED BONE OR BONE ASH, AND APATITIC MATERIAL

摘要

Apatite is obtained by carbonizing animal bones to prepare bone charcoal, pulverizing the bone charcoal to prepare bone charcoal powder, mixing the powder with an acid under stirring followed by the separation of the first activated charcoal from a supernatant, adding the supernatant to an alkali solution for neutralization followed by the separation of the first apatite thus precipitated from a supernatant, adding an acid to the first activated charcoal under stirring followed by leaving of the resulting mixture to stand still and separation of the second activated charcoal thus precipitated from a supernatant, adding the supernatant to an alkali solution for neutralization followed by the separation of the second apatite thus precipitated from a supernatant, adding an acid to the second activated charcoal under stirring followed by leaving of the resulting mixture to stand still and separation of the third activated charcoal thus precipitated from a supernatant, and adding the supernatant to an alkali solution for neutralization followed by the separation of the third apatite thus precipitated from a supernatant.