| 摘要 |
PCT No. PCT/GB89/00618 Sec. 371 Date Apr. 2, 1990 Sec. 102(e) Date Apr. 2, 1990 PCT Filed Jun. 2, 1989 PCT Pub. No. WO89/11880 PCT Pub. Date Dec. 14, 1989.The invention provides a process for the preparation of high purity bone mineral wherein the organic matter is degraded by heating with ammonia or a primary amine, characterized in that the solubilized degradation products are extracted by washing with flowing water at temperature below 60 DEG C., such heating with primary amine and washing steps optionally being repeated, whereby substantially all organic matter removable by these steps is removed, the bone mineral so treated being heated in air at temperatures between 250 DEG C. and 600 DEG C.
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